Bacillary hemoglobinuria in a cow

Clinical History: A 436 kg, 2-year-old, pregnant Angus cross cow was presented for necropsy with a history of sudden death during calving season. Two other heifers on the property recently had late term abortions with the calves having to be pulled out from the birth canal. Gross Findings: The subcutaneous tissue, omentum, mesentery, perirenal adipose tissue, and intima of the major vessels were diffusely and markedly yellow (Figure 1). The right liver lobe had a large (15x11x7 cm) area of pale tan discoloration covered by a thin layer of fibrin. On the cut surface, this area was pale red and dry (Figure 2). Throughout the remaining hepatic parenchyma were irregularly shaped, serpiginous, dark green to black tracks. Some of these tracks contained adult Fasciola hepatica flukes in the lumen. The gallbladder was distended and filled with large amounts of dark green, thick bile. The kidneys were diffusely dark red with disseminated pinpoint, dark red foci in the cortex (Figure 3). The urinary bladder contained approximately 300 mL of dark red urine (Figure 4). The brain had a slight yellow discoloration. Approximately 300 mL of red-tinged fluid was in the thorax. Large numbers of fibrous adhesions were present between the visceral pleura, the parietal pleura, and the pericardium. Approximately 200 mL of red-tinged fluid was in the pericardial sac. There was extensive hemorrhage on the epicardium.

Carcinoma hepatocelular metastático em Amazona aestiva / Metastatic hepatocellular carcinoma in Amazona aestiva

Background: Hepatocellular carcinoma is a primary malignant tumor of the liver tissue and its occurrence in birds is considered rare. The tumor can occur as a single mass leading to hepatomegaly, or as multiple nodules in the liver. In animals of the genus Amazona, only 1 case of metastatic hepatocellular carcinoma has been reported in the United States, therefore, little is known about its epidemiology and clinicopathological aspects in these species. In this context, the aim of this work was to describe a case of metastatic hepatocellular carcinoma in an Amazona aestiva. Case: A blue-fronted amazon parrot (Amazona aestiva) was referred to necropsy after being found dead in its enclosure. On examination, it presented cachectic body score. Examination of the coelomic cavity, revealed a serous translucent fluid and adhesions between the liver and peritoneum.A red mass restricted to the right hepatic lobe and raised to the capsular surface, interspersed with whitish and dark red multifocal areas was observed. When cut, this mass was soft, protruding, multilobulated, whitish and with a friable reddish center. Additionally, on the dorsal surface of the left lung lobe, there was a rounded, well defined, whitish, and soft nodule. Microscopically, partial replacement of the hepatic parenchyma was observed by neoplastic proliferation of cuboidal epithelial cells, organized in mantle and supported by a scarce fibrovascular stroma. Cells have large, eosinophilic, well-delimited cytoplasm, with a central, oval nucleus, loose chromatin, and evident nucleolus. Moderate pleomorphism was characterized by anisocytosis, anisokaryosis, and aberrant nuclei. In the lung, a focally extensive mass with a pattern similar to that seen in the liver was observed. In the kidney, multifocal neoplastic emboli were noted. Liver immunohistochemistry was performed. Positive and negative controls were used to validate the reaction; however, there was no immunolabelling for the evaluated antibodies. Discussion: The histopathological characteristics observed in this study favored the diagnosis of hepatocellular carcinoma (HCC) with metastasis to kidney and lung. Primary liver tumors are rare in wild birds. In ducks, experimental studies have pointed aflatoxins and the duck hepatitis B virus as oncogenic agents, however, in birds of the genus Amazona, there are no studies that evaluate predisposing factors to the development of liver carcinoma. Macroscopically, hepatocellular carcinoma may present in massive, nodular or diffuse forms. In birds, the right lobe is the largest, which may suggest that this lobe is more prone to the development of HCC, as seen in the present case. The solid form, similar to that observed in this report, seems to be more commonly observed, as seen in the wild bird reports consulted. Metastases most often spread hematogenous, and in the present report there was metastasis to kidneys and lungs, which is a common feature for this neoplasm. In the present case, there was no labeling by any of the antibodies, perhaps because of their aggressiveness, associated with autolytic factors that prevent the labeling of antibodies, in addition to the specificity in the antibodyantigen relationship. This tumor must be differentiated from other liver tumors such as cholangiocarcinoma, and also the well-differentiated hepatocellular adenoma, in addition to non-neoplastic conditions. HCC should be considered as a differential diagnosis for Amazona aestiva found dead in the enclosure without previous clinical signs. This neoplasm is rare in Amazon parrots and reports should be encouraged in order to contribute to the understanding of the epidemiological and clinicopathological aspects of the tumor.

Lesão traumática facial em cão - reconstrução cirúrgica com retalho de transposição rotacional / Facial traumatic injury in a dog - surgical reconstruction with rotational transposition flap

Background: Bite injuries are commonly found in small animal clinics, especially in male dogs, due to their habits of fighting and territorial disputes. In general, the lesions are treated with the use of compresses and bandages, however, it is extremely important to carefully evaluate the site, in order to carry out the appropriate treatment. In cases of tissue loss, an increasingly used practice is reconstructive surgery, which launches alternatives for treatment through flaps and skin grafts, promoting healing and satisfactory aesthetic repair. This report describes the case of a dog with a facial bite, treated with reconstructive surgery. Case: A 5-year-old male mixed-breed dog, with a body mass of 5 kg, was treated and submitted to a physical examination, due to the owner's complaint that he had been attacked by another dog, causing a bite on the face. On physical examination, the animal showed normal vital parameters, except for mild hyperthermia due to rectal temperature (39.5°C). On the face, it was possible to observe a lacerative lesion in the temporomandibular and masseteric regions, with loss of skin and muscle, in addition to having an aspect of infection and necrosis. To describe the hematological profile, a blood count was performed, showing no changes. In the biochemical tests, the present alteration was a slight increase in Alkaline Phosphatase (393.8 IU/L). Surgical treatment was indicated through facial reconstruction with a skin graft. After performing the antisepsis, the lesion was debrided, the edges were regularized and the injured tissue was curetted. For reconstruction of the defect, we used a flap obtained through a perpendicular incision at the base of the ear, in a caudal direction, and this flap was pulled and transposed over the wound. Flap synthesis was performed with 3-0 nylon thread. After surgery, a compressive bandage was performed, which was removed after 24 h. It was indicated to avoid exertion in the area and to return in 10 days for the evaluation of the surgery and removal of the stitches. Discussion: Traumatic injuries in animals are being increasingly reported, with male and non-neutered dogs being the most prevalent patients. This report is in line with other studies, with the patient's profile being a male dog, with an average age, in line with the literature. In general, in certain types of wounds, the affected animals can develop sepsis and even progress to death, however, in this case the patient did not show changes in vital parameters and in hematological tests. Reconstructive surgeries are performed with the aim of correcting skin defects and knowledge of the available techniques is important. It is also necessary to carry out a good planning, in order to avoid complications in the trans and postoperative period. In the present case, we chose to use a flap obtained through an incision perpendicular to the base of the ear, transposing it over the wound, in addition to relieving tissue tension through skin divulsion, increasing its elastic potential. The use of bandages is considered extremely important for the success of the surgical procedure, as it provides an efficient barrier against infections, trauma and adhesions. However, we emphasize the need to use ointments, gauzes and bandages concomitantly, in order to have the desired success in the postoperative period. In addition to proper surgical techniques, pain management and infection control are important for patient recovery. It is important to use non-steroidal anti-inflammatory drugs and opioids to obtain analgesia, in addition to antibiotic therapy before and after surgery. The reported case demonstrated that lesions in dogs with skin loss can be reconstructed using skin flaps, with an excellent recovery and good prognosis, as was the case with the patient in this report.

Uteropexy in sheep as potential method for prevention of uterine torsion

Background: Uterine torsion is one of many causes of dystocia in sheep. Failure in performing of wright-time diagnostic procedures and treatment by certain obstetric procedures, can result with death of both fetus and ewe. There is sufficient knowledge about risk factors which could contribute to the occurrence of uterine torsion in sheep, but there is insufficient knowledge about measures for prevention of uterine torsion. The aim of this study was to evaluate the effects of performing incorporative uteropexy as potential method for prevention of uterine torsion. Cases: This research was part of the experimental research of changes in the anterior presentation in sheep fetuses due to their ventro-sacral position in the 2nd half of gestation. At the same sheep farm where afore mentioned research was conducted, the farmer has reported the death of 3 pregnant ewes. In all of 3 animals, torsion of the uterus was diagnosed by patho-anatomical examination. This study was conducted on 6 ewes. All of the animals were in the period around the 100th day of pregnancy at the time of clinical examination. The exact day of pregnancy was not determinated because of free mating in the herd. Confirmation of pregnancy in all of 6 ewes was performed by ultrasound examination. Uniparous pregnancy was found in all of 6 ewes. The entire surgical procedures were performed in the field conditions. Laparotomy was performed in the animals positioned in the left lateral recumbency. Surgical procedure of incorporative uteropexy was performed during the closure of muscle layers of abdominal wall. In need for experimental research of changes in the anterior presentation in sheep fetuses due to their ventro-sacral position in the 2nd half of gestation, 14 days after surgical procedures were conducted, all of sheep were positioned by assistants into a sitting position so that their trunks were vertical to the ground and kept in that position for 2 min. Ultrasound examination of surgical place of uteropexy confirmed that, in all of animals, uteruses were in place of surgical procedures. All of 6 ewes included in this study lambed naturally. One of 6 sheep was sent for economic exploitation on the 14th day after lambing. At the slaughter line, the abdominal wall was evaluated at the site where the incorporative uteropexy was performed. Patho-anatomical examination revealed tissue adhesions at the junction of the uterine horn with the abdominal wall. Discussion: Postsurgical tissue adhesions develop during normal healing process of tissue. According to our knowledge, previous studies do not mention effective measures that could contribute to the prevention of uterine torsion in sheep, but attention is focused on prompt diagnosis and treatment of the disease. According to the results of this study, postsurgical tissue adhesions were developed and confirmed by patho-anatomical examination in 1 sheep. Other 5 sheep were not economically exploited or sacrificed, and no studies were performed to establish the presence of postsurgical tissue adhesions. In conclusion, it could be said that incorporative uteropexy could be considered as preventive procedure in order to avoid the development of uterine torsion in ewes which have shown a history of this pathology, but also in ewes with identified risk factors for the disease. In future studies, it is necessary to identify more parameters which will contribute to identification of sheep which have high risk factors to obtain the torsion of uterus. Also, it is necessary to use non-invasive methods of clinical diagnostics, primary ultrasound diagnostic, to evaluate the area of incorporative uteropexy in order to assess newly formed tissue adhesions as well as to assess the vitality of fetus. It is necessary to follow the lambing process of ewes with incorporated uterus, and to provide medical assistance to the animals if complications occur during the lambing time.

Hydronephrosis in a bitch with ovarian remnant syndrome - postsurgical complications

Background: Elective ovariohysterectomy (OH) is minimally invasive, but when performed incorrectly, it can lead to postsurgical complications, such as stump pyometra, ovarian remnant syndrome and foci of adhesion generated by tissue reactions to threads and materials used in vessel hemostasis. The formation of adhesions and successive surgeries predisposes patients to other diseases, such as ureteral obstruction and hydronephrosis. Thus, we reported a case of hydronephrosis in a bitch submitted to conventional OH, followed by ovariectomy (OV) due to ovarian remnant syndrome and consequent intraperitoneal adhesions caused by successive surgical interventions. Case: A 11-year-old mixed breed medium size bitch with a history of stump pyometra and ovarian remnant syndrome (SOR) was treated at the Veterinary Hospital-HV of UFPA after 2 previous surgeries. It had been spayed using conventional OH and underwent ovariectomy OV approximately 4 years ago, as it showed signs of estrus after the first surgery, characterizing SOR. On physical examination, its abdomen was distended especially in the left hemiabdomen, with no palpable pain. Ultrasonography showed a cavity in the topographic area of the left kidney, with anechoic content, thin walls, and defined contour. There were nonvascularized tubular structures, suggesting hydroureter and severe hydronephrosis. Exploratory celiotomy was performed, showing the intense presence of abdominal adhesions, followed by an incision in the abdominal midline from the xiphoid process in a caudal direction to the pubis, thereby showing the left kidney. After vesical drainage of 900 mL of renal filtrate, atrophy of the renal parenchyma and preservation of the renal capsule was considered, resulting in its complete resection, followed by the synthesis of the abdominal wall. In the postoperative period, the patient was properly monitored and obtained a satisfactory outcome manifested by a complete recovery. After vesical drainage of 900 mL of renal filtrate, atrophy of the renal parenchyma and preservation of the renal capsule only was considered, resulting in its complete resection, followed by the synthesis of the abdominal wall. In the postoperative period, the patient was properly monitored and obtained a satisfactory outcome manifested by a complete recovery. After vesical drainage of 900 mL of renal filtrate, renal parenchymal atrophy and preservation of the renal capsule only was adopted. Discussion: The choice of the conventional OH technique, followed by the failure to perform, favored the formation of adhesions only diagnosed late. Less invasive alternatives achieved less long-term damage. Excessive intracavitary manipulation and reaction to the nylon suture thread favored the development of these adhesions, and consequently, unilateral obstruction of the left ureter, hydroureter, hypertrophy, and destruction of the renal parenchyma, led the patient to undergo a third surgery, namely, unilateral nephrectomy. In this case, no changes were observed in serum levels, leaving only a subtle abdominal enlargement with hydronephrosis installed silently. There was no possibility of carrying out initial surgical planning, as the affected kidney, making unilateral nephrectomy necessary. Currently, the patient has normal renal function in the contralateral organ, with no clinical or laboratory changes because the affected kidney was not functional, making unilateral nephrectomy necessary. Currently, the patient has normal renal function with no clinical or laboratory changes because the affected kidney was not functional, making unilateral nephrectomy necessary. Currently, the patient has normal renal function in the contralateral organ, with no clinical or laboratory changes.

Antiadhesion and antibiofilm potential of Fagonia indica from Cholistan desert against clinical multidrug resistant bacteria / Potencial de antiadesão e antibiofilme de Fagonia indica do deserto do Cholistão contra bactérias multirresistentes clínicas

High resistance to antimicrobials is associated with biofilm formation responsible for infectious microbes to withstand severe conditions. Therefore, new alternatives are necessary as biofilm inhibitors to control infections. In this study, the antimicrobial and antibiofilm activities of Fagonia indica extracts were evaluated against MDR clinical isolates. The extract exhibited its antibiofilm effect by altering adherence and disintegration of bacterial cell wall. Fagonia indica has antibacterial effect as minimum inhibitory concentration (MIC) values ranging from 125 to 500 µg mL-1 and minimum bactericidal concentration (MBC) value was 500-3000 µg mL-¹ against multidrug resistant (MDR) clinical isolates. The extract exhibited its antibiofilm effect by altering adherence and disintegration of bacterial cell wall. Fagonia indica had antibacterial effect as minimum inhibitory concentration (MIC) values ranging from 125 to 500 µg mL-¹ and minimum bactericidal concentration (MBC) value was 500-3000 µg mL-¹ against MDR isolates. The maximum inhibitory effects of Fagonia indica chloroform extract on biofilm formation was observed on Staphylococcus aureus (71.84%) followed by Klebsiella pneumoniae (70.83%) after 48 hrs showing that inhibition is also time dependent. Our results about bacterial cell protein leakage indicated that MDR isolates treated with chloroform extract of Fagonia indica showed maximum protein leakage of K. pneumoniae (59.14 µg mL-¹) followed by S. aureus (56.7 µg mL-1). Cell attachment assays indicated that chloroform extract resulted in a 43.5-53.5% inhibition of cell adherence to a polystyrene surface. Our results revealed that extracts of Fagonia indica significantly inhibited biofilm formation among MDR clinical isolates, therefore, could be applied as antimicrobial agents and cost effective biofilm inhibitor against these MDR isolates.

A alta resistência aos antimicrobianos está associada à formação de biofilme responsável por micróbios infecciosos para suportar condições severas. Portanto, novas alternativas são necessárias como inibidores de biofilme para controlar infecções. Neste estudo, as atividades antimicrobiana e antibiofilme dos extratos de Fagonia indica foram avaliadas contra isolados clínicos MDR. O extrato exibiu seu efeito antibiofilme ao alterar a aderência e a desintegração da parede celular bacteriana. Fagonia indica tem efeito antibacteriano com valores de concentração inibitória mínima (CIM) variando de 125 a 500 µg mL-¹, e valor de concentração bactericida mínima (MBC) de 500-3000 µg mL-1 contra isolados clínicos multirresistentes (MDR). O extrato exibiu seu efeito antibiofilme ao alterar a aderência e a desintegração da parede celular bacteriana. Fagonia indica teve efeito antibacteriano com valores de concentração inibitória mínima (CIM) variando de 125 a 500 µg mL-¹, e concentração bactericida mínima (MBC) de 500-3000 µg mL-¹ contra isolados MDR. Os efeitos inibitórios máximos do extrato de clorofórmio Fagonia indica na formação de biofilme foi observada em Staphylococcus aureus (71,84%), seguido por Klebsiella pneumoniae (70,83%) após 48 horas, mostrando que a inibição também é dependente do tempo. Nossos resultados sobre extravasamento de proteínas de células bacterianas indicaram que isolados MDR tratados com extrato clorofórmico de Fagonia indica apresentaram vazamento máximo de proteínas de K. pneumoniae (59,14 µg mL-¹), seguido por S. aureus(56,7 µg mL-¹). Ensaios de fixação de células indicaram que o extrato de clorofórmio resultou em uma inibição de 43,5-53,5% da aderência das células a uma superfície de poliestireno. Nossos resultados revelaram que extratos de Fagonia indica inibiram [...].

Antiadhesion and antibiofilm potential of Fagonia indica from Cholistan desert against clinical multidrug resistant bacteria / Potencial de antiadesão e antibiofilme de Fagonia indica do deserto do Cholistão contra bactérias multirresistentes clínicas

High resistance to antimicrobials is associated with biofilm formation responsible for infectious microbes to withstand severe conditions. Therefore, new alternatives are necessary as biofilm inhibitors to control infections. In this study, the antimicrobial and antibiofilm activities of Fagonia indica extracts were evaluated against MDR clinical isolates. The extract exhibited its antibiofilm effect by altering adherence and disintegration of bacterial cell wall. Fagonia indica has antibacterial effect as minimum inhibitory concentration (MIC) values ranging from 125 to 500 µg mL-1 and minimum bactericidal concentration (MBC) value was 500-3000 µg mL-¹ against multidrug resistant (MDR) clinical isolates. The extract exhibited its antibiofilm effect by altering adherence and disintegration of bacterial cell wall. Fagonia indica had antibacterial effect as minimum inhibitory concentration (MIC) values ranging from 125 to 500 µg mL-¹ and minimum bactericidal concentration (MBC) value was 500-3000 µg mL-¹ against MDR isolates. The maximum inhibitory effects of Fagonia indica chloroform extract on biofilm formation was observed on Staphylococcus aureus (71.84%) followed by Klebsiella pneumoniae (70.83%) after 48 hrs showing that inhibition is also time dependent. Our results about bacterial cell protein leakage indicated that MDR isolates treated with chloroform extract of Fagonia indica showed maximum protein leakage of K. pneumoniae (59.14 µg mL-¹) followed by S. aureus (56.7 µg mL-1). Cell attachment assays indicated that chloroform extract resulted in a 43.5-53.5% inhibition of cell adherence to a polystyrene surface. Our results revealed that extracts of Fagonia indica significantly inhibited biofilm formation among MDR clinical isolates, therefore, could be applied as antimicrobial agents and cost effective biofilm inhibitor against these MDR isolates.(AU)

A alta resistência aos antimicrobianos está associada à formação de biofilme responsável por micróbios infecciosos para suportar condições severas. Portanto, novas alternativas são necessárias como inibidores de biofilme para controlar infecções. Neste estudo, as atividades antimicrobiana e antibiofilme dos extratos de Fagonia indica foram avaliadas contra isolados clínicos MDR. O extrato exibiu seu efeito antibiofilme ao alterar a aderência e a desintegração da parede celular bacteriana. Fagonia indica tem efeito antibacteriano com valores de concentração inibitória mínima (CIM) variando de 125 a 500 µg mL-¹, e valor de concentração bactericida mínima (MBC) de 500-3000 µg mL-1 contra isolados clínicos multirresistentes (MDR). O extrato exibiu seu efeito antibiofilme ao alterar a aderência e a desintegração da parede celular bacteriana. Fagonia indica teve efeito antibacteriano com valores de concentração inibitória mínima (CIM) variando de 125 a 500 µg mL-¹, e concentração bactericida mínima (MBC) de 500-3000 µg mL-¹ contra isolados MDR. Os efeitos inibitórios máximos do extrato de clorofórmio Fagonia indica na formação de biofilme foi observada em Staphylococcus aureus (71,84%), seguido por Klebsiella pneumoniae (70,83%) após 48 horas, mostrando que a inibição também é dependente do tempo. Nossos resultados sobre extravasamento de proteínas de células bacterianas indicaram que isolados MDR tratados com extrato clorofórmico de Fagonia indica apresentaram vazamento máximo de proteínas de K. pneumoniae (59,14 µg mL-¹), seguido por S. aureus(56,7 µg mL-¹). Ensaios de fixação de células indicaram que o extrato de clorofórmio resultou em uma inibição de 43,5-53,5% da aderência das células a uma superfície de poliestireno. Nossos resultados revelaram que extratos de Fagonia indica inibiram [...].(AU)

Sclerosing encapsulating peritonitis in a dog

Sclerosing encapsulating peritonitis (SEP) is a rare condition which consists of reactive fibrous tissue proliferation with mixed inflammatory infiltration within the abdominal cavity. The present report describes an additional case of SEP affecting a mixed-breed immature female dog presented with persistent vomiting, progressive weight loss, and ascites. Abdominal radiographic and ultrasonographic findings suggested abdominal neoformation resulting in gastric displacement, in addition ascitic fluid was evaluated and cytology showed large numbers of inflammatory effusion. An exploratory laparotomy was performed and were detected multiple thick peritoneal adhesions which restricted mobility of abdominal viscera. Biopsy specimens of these lesions were submitted for histopathological examination. Microscopically, the external serous surfaces of the abdominal organs were covered with dense fibrous connective tissue characterized by intense mature collagen deposition and moderate angiogenesis. The animal was euthanized due to poor prognosis and sent for necropsy. The clinical, imaging, gross and microscopic findings were compatible with SEP.(AU)

Primary non-metastatic omental myofibrosarcoma in a horse / Miofibrossarcoma omental primário não metastático em um cavalo

Myofibrosarcoma in horses is a rare malignant tumor composed predominantly by myofibroblasts. A 15-year-old horse was referred to the Veterinary Hospital of the Federal University of Parana for evaluation of colic signs. Initial physical examination showed icteric mucous membrane and laboratory analysis found anemia, increased serum activity of ALT, GGT, ALP, and bilirubin. In the exploratory laparotomy a highly vascularized abdominal mass in the left hypochondrium region of approximately 50cm x 45cm x 30cm, adhered to the surrounding structures was observed. Due to the size and adhesions to the omentum, the mass was considered surgically unresectable, and euthanasia was performed followed by necropsy. The immunohistochemical and morphological results indicate the diagnosis of myofibrosarcoma since the neoplastic cells immunoexpressed Vimentin, HHF35 and S100. To the authors' knowledge, this is the first equine case of omental myofibrosarcoma described in the literature.

O miofibrossarcoma em cavalos é um raro tumor maligno, composto predominantemente por miofibroblastos. Um equino, de 15 anos de idade, foi encaminhado ao Hospital Veterinário da Universidade Federal do Paraná, para avaliação de sinais de cólica. O exame clínico inicial apresentou mucosas ictéricas e, nos exames laboratoriais, revelou anemia e aumento sérico de ALT, GGT, ALP e bilirrubina. Na laparotomia exploratória, observou-se massa abdominal vascularizada de aproximadamente 50cm x 45cm x 30cm na região do hipocôndrio esquerdo e aderida às estruturas circunvizinhas. Devido ao tamanho e às aderências ao omento, a massa foi considerada irressecável cirurgicamente, portanto foi realizada a eutanásia e a necropsia. Os resultados imuno-histoquímicos e morfológicos indicam o diagnóstico de miofibrossarcoma, visto que as células neoplásicas imunoexpressaram Vimentin, HHF35 e S100. Portanto, esse é o primeiro caso em equinos de miofibrossarcoma omental descrito na literatura.

First report of Dipetalonema gracile in a captive Marcgrave's capuchin monkey (Sapajus flavius) in northeastern Brazil: Scientific communication / Primeira descrição de Dipetalonema gracile em macaco-prego-galego (Sapajus flavius) do nordeste do Brasil: Comunicação científica

Parasitic infections are important concern to the Wildlife Conservation Biology, particularly in endangered species. Herein, we report a parasitism by Dipetalonema gracile Rudolphi, 1809 (Spirurida, Filarioidea, Onchocercidae), in the peritoneal cavity of a captive Marcgrave's capuchin monkey (Sapajus flavius) that died at the Wild Animal Screening Center (CETAS) of the Brazilian Institute for the Environment and Renewable Natural Resources (IBAMA) in the municipality of Cabedelo, state of Paraíba, northeastern Brazil. The necropsy revealed two filarial worms D. gracile in the abdominal cavity. Exudates, thin fibrin layers and fibrous adhesions were also present in the mesentery and spleen capsule. The mesenteric, mandibular, and tracheobronchial lymph nodes were enlarged. Multiple small nodules were seen in the spleen parenchyma. Microscopic examination of the lymph nodes and spleen revealed markedly and diffuse inflammatory reaction, with edema, plasma cells, eosinophils, histiocytes, lymphocytes and rare multinuclear giant cells, with obliteration of the normal histological architecture of the organ. This is the first report of D. gracile parasitism in Marcgrave's capuchin monkeys, a critically endangered species. Studies of this nature significantly contribute to the knowledge of the parasitic fauna of endangered species, in addition to helping to formulate conservation strategies (in situ and ex situ) and records of new hosts and new areas of occurrence of parasites.(AU)

Infecções parasitárias são uma questão importante para a Medicina e Biologia da Conservação. É descrito o parasitismo por Dipetalonema gracile Rudolphi, 1809 (Spirurida, Filarioidea, Onchocercidae) na cavidade peritoneal de um macaco-prego-galego (Sapajus flavius) que morreu no Centro de Triagem de Animais Silvestres (CETAS) do Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis (IBAMA), município de Cabedelo, Paraíba, Brasil. A necropsia revelou dois espécimes de parasitas na cavidade abdominal. Exsudatos, finas camadas de fibrina e aderências fibrosas também estavam presentes no mesentério e na cápsula do baço. Os linfonodos mesentéricos, mandibulares e traqueobrônquicos estavam aumentados. Vários pequenos nódulos foram vistos no parênquima do baço. O exame microscópico dos linfonodos e baço revelou reação inflamatória grave e difusa, com edema, células plasmáticas, eosinófilos, histiócitos, linfócitos e raras células gigantes multinucleares, com obliteração da arquitetura histológica normal do órgão. Este é o primeiro relato de parasitismo por esse nematódeo em macaco-prego-galego, uma espécie criticamente ameaçada da Mata Atlântica do Rio Grande do Norte, Paraíba e Pernambuco. Estudos dessa natureza contribuem significativamente para o conhecimento sobre a fauna parasitária de espécies ameaçadas de extinção, além de auxiliar na formulação de estratégias de conservação (in situ e ex situ) e registros de novos hospedeiros e novas áreas de ocorrência de parasitas.(AU)

Clinical, sonographic and anatomopathological aspects of ovarian teratoma in a heifer / Aspectos clínicos, ultrassonográficos e anatomopatológicos do teratoma ovariano em uma novilha

Teratomas rarely occur in domestic species, especially in cattle. These tumors originate in fetal life and are characterized by rapid growth, which justifies their frequent detection in young animals. This study reported a case of ovarian teratoma in a heifer. On physical examination, the main signs identified were apathy, abdominal distention and tension, empty rumen, and mushy diarrhea. During rectal palpation, a mass was identified in the pelvic region, which was suggestive of cysts on ultrasound examination. The animal underwent laparotomy, followed by euthanasia due to a poor prognosis. At necropsy, a 54 x 43 x 52 cm (length x width x thickness) tumor was observed in the right ovary with multiple cystic areas, in addition to masses associated with multiple adhesions of the intestinal loops and peritonitis. On histopathology, muscle, cartilage, bone, nervous and epithelial tissue, glands, hair with follicles, were identified in the affected ovary. There was mixed inflammation and foci of necrosis observed with a complete absence of ovarian architecture in both the ovaries. Infiltrations were identified in the lymph nodes and mesenteric vessels. Glandular ducts were seen from the serosa to the intestinal mucosa. A locally infiltrative and expansile ovarian teratoma was diagnosed accordingly. It is considered that this kind of tumor can induce abdominal distension and absence of estrus in previously healthy, non-pregnant heifers.

Os teratomas são tumores raros nas espécies domésticas, sobretudo em bovinos. Esses tumores são caracterizados por crescimento rápido e origem durante a vida fetal, o que justifica seu diagnóstico frequente em animais jovens. O presente trabalho relata um caso de teratoma ovariano em uma novilha. No exame físico, os principais sinais identificados foram apatia, distensão e tensão abdominal, rúmen vazio e diarreia pastosa. Durante a palpação retal, uma massa foi identificada na região pélvica. Ao exame ultrassonográfico, a massa era sugestiva de cistos. O animal foi submetido a laparotomia, seguido de eutanásia devido ao mau prognóstico. Na necropsia foi observado um tumor de 54 x 43 x 52 cm (comprimento x largura x espessura) no ovário direito com múltiplas áreas císticas, além de massas associadas à múltiplas aderências das alças intestinais e peritonite. Na histopatologia foram identificados no ovário acometido a presença de tecidos muscular, cartilaginoso, ósseo, nervoso e epitelial, com glândulas, pelos e folículos. Havia inflamação mista e focos de necrose com ausência completa de arquitetura ovariana em ambos os ovários. Infiltrações foram identificadas em linfonodos e vasos mesentéricos. Ductos glandulares foram vistos desde a serosa até mucosa intestinal. Diagnosticou-se um teratoma ovariano localmente infiltrativo e expansivo. Considera-se que este tumor pode induzir distensão abdominal e ausência de estro em novilhas previamente sadias e não gestantes.

Biliary peritonitis in a dog after perforation of the gallbladder during laparoscopic cholecystectomy

Background: Iatrogenic gallbladder perforation during laparoscopic cholecystectomy (LC) is a common complication and occurs in at least one third of human patients undergoing LC. This is attributed to the fragility of the gallbladder wall associated with mucocele and cholecystitis, in addition to the need for repetitive gripping and traction of the gallbladder during its manipulation with laparoscopic instruments. As complications from this event are rare in human patients, conversion to laparotomy is not routinely indicated and the adverse consequences of bile spillage are minimized by abundant irrigation of the peritoneal cavity and adequate antimicrobial therapy. On the other hand, there is little information regarding the outcome of laparoscopic management of this complication in laparoscopic cholecystectomies in dogs, particularly since most surgeons indicate conversion in these cases. Thus, we describe a case of biliary peritonitis that developed in a dog after laparoscopic management of iatrogenic perforation of the gallbladder during a laparoscopic cholecystectomy, in a case of gallbladder mucocele. To the best of our knowledge, there are no reports of biliary peritonitis following laparoscopic management of iatrogenic gallbladder perforation during LC in dogs. Case: A 14-year-old Poodle was referred for clinical evaluation with selective appetite, recurrent episodes of hyporexia, and abdominal discomfort. Ultrasound findings characterized chronic liver disease and gallbladder mucocele. The patient was referred for laparoscopic cholecystectomy, during which the gallbladder was iatrogenically perforated, with extravasation of a large volume of bile content. This complication was managed by copious abdominal irrigation via laparoscopic access and antimicrobial therapy. On the second postoperative day, the patient started to present apathy, hyporexia, emesis, and jaundice. The patient remained hospitalized in the intensive care unit for stabilization and monitoring through hematological examinations and serial abdominal ultrasound. Due to progressive worsening of the clinical picture, an exploratory laparotomy was performed ten days after the initial surgical procedure. This examination showed multiple adhesions and the presence of bile residues adhered to numerous points on the peritoneal surface and pancreas. Despite the intensive treatment instituted, death occurred 10 h after the second surgical procedure. Discussion: The high risk of gallbladder perforation during laparoscopic cholecystectomies correlates with the dissection step or repetitive grasping and traction of the gallbladder with laparoscopic instruments. Conversion is not routinely indicated and laparoscopic management is considered effective in humans. However, in this case, the presence of a large volume of extravasated semisolid bile content and its adherence to the mesothelial surface made it impossible to remove it in its entirety despite the abundant irrigation of the abdominal cavity, resulting in a picture of biliary peritonitis in the postoperative period. In view of the reported negative outcome, the authors encourage the adoption of measures that minimize the risk of gallbladder perforation when performing LC in dogs. These include the use of atraumatic instruments or aspiration of bile content before surgical manipulation. Cases in which such a complication is recorded should be carefully monitored to enable early diagnosis and treatment of biliary peritonitis. Furthermore, conversion should be considered when there is extravasation of large volumes of bile, particularly in the presence of gallbladder mucocele, until future studies establish the safety and effectiveness of laparoscopic management of this complication.

Reconstrução prepucial com uso de enxerto combinado em cães / Preputial reconstruction combined with graft in dogs

Background: Preputial injuries are significant in the clinical routine. Traumas, conditions, and mass excision result in extensive and full-thickness defects that lead to chronic penile exposure and consequential injuries. Severe injuries may require preputial reconstructive surgery to restore function and aesthetics. The objective is to report the use of the preputial reconstruction technique using the caudal superficial epigastric axial standard flap associated with a single-stage, full-thickness oral mucosa graft in 3 dogs where the loss of the prepuce was significant. Cases: Three dogs were admitted to the Veterinary Teaching Hospital of UFMT with preputial lesions of different etiologies. All cases were referred for preventive reconstruction using a flap in the caudal axial epigastric pattern associated with a single-stage oral mucosa graft. In the 3 reported cases, changes that compromised surgical success, such as suture dehiscence, necrosis, or infection, were not observed during hospitalization. Cutaneous stitch dehiscence, however, was observed in all 3 cases. Dog 1. A small point of dehiscence and tissue necrosis was found and treated with chemical debridement and healed by second intention, which proved to be sufficient on the 30th day. Dog 2. A half-moon rotation flap was performed, which closed the defect. Dog 3. A new procedure using the reporting theme technique was necessary in order to cover the cranial portion of the foreskin. The dehiscence present in dogs 2 and 3 was significant. Flap retraction was observed in all 3 cases. In dogs 1 and 3, the retraction was slight, and the exposure of a small portion of the penile glans were observed, showing no changes that required intervention. In dog 2, retraction was important, leading to partial stenosis of the preputial ostium. A larger ostium was obtained by suturing the mucosa to the edge of the wedge. Considering the possibility of adhesion formation, "captons" were made in sterile silicone tubes, and sutures were placed in the dorsal and ventral aspects to prevent adherence of the oral mucosa graft located on the inside of the new foreskin. The captons were removed on the tenth post-operative day, revealing a good opening of the preputial orifice and adequate penile exposure. Discussion: The absence of a foreskin caused by trauma or surgical excision leads to chronic penile exposure, dryness, and ulcerations. The simple covering of the skin with an axial-type flap of the caudal superficial epigastric region tends to fail since only the graft edges are sutured into the abdominal skin. In these circumstances, the subcutaneous region on the penis is exposed and comes in direct contact with urine and the penile mucosa, causing the flap skin to grow to exacerbated retraction. The transplantation of a free-lip mucosa graft allows the subcutaneous region of the transposed skin flap to create adhesions in the fenestrated regions of the lip tissue through the formation of granulation tissue buds, which is performed in a single stage. The permanence of the penis protects the lower urinary system from the occurrence of infections relative to what is normally observed in cases where partial or total penile amputation is practiced in combination with adjunctive scrotal urethrostomy. Given the observations of the 3 cases described here, the technique of pre-facial reconstruction with an axial skin flap of the caudal superficial epigastric region, combined with free-labial mucosa graft, was found to be feasible for the single-stage foreskin technique, but that paraphimosis remanagement may be necessary when cutaneous portions of the penile skin caudal to the glans are removed.

Effects of glycerol and sodium pentaborate containing new formulation on sleeve gastrectomy model in rats

ABSTRACT Purpose: The development of cutting surface leakage and postoperative peritoneal adhesions (PPA) after sleeve gastrectomy (SG) are the most serious operative complications. We investigated the effectiveness of the newly developed glycerol and sodium pentaborate containing formulation on the prevention of these complications. Methods: Sixteen Sprague Dawley rats (mean weight 310 ± 50 g, mean age 3 months old) were divided into two groups, consisting of eight rats in each. SG and a double-layer suture technique were performed for each group. In study group, there was the mixture of 2 mL 3% glycerol plus 3% sodium pentaborate formulation, and in the control group 2 mL 0.9% NaCl was injected into the peritoneal cavity. Rats were sacrificed after 30 days, then macroscopic adhesion grade scoring and histopathological evaluations were assessed. Results: Macroscopic PPA scores in the control and study groups were 2.75 ± 0.16 and 1.50 ± 0.327, respectively (p = 0.004). Histopatologic fibrosis scores in the control and study groups were 0.87 ± 0.125 and 2.00 ± 0.26, respectively (p = 0.002). Conclusions: In SG operation model, glycerol plus sodium pentaborate compound decreased PPA formation and also increased stomach cut surface line fibrosis. This new formulation is hopeful for more safe SG operations.

Biological compatibility of oxidized cellulose vs. porcine gelatin to control bleeding in liver lesions in rats

ABSTRACT Purpose: To compare biological compatibility, hemostasis, and adhesion formation between oxidized regenerated cellulose and lyophilized hydrolyzed porcine collagen in liver trauma. Methods: Forty male Wistar rats constituted two groups: group A (oxidized cellulose) and group B (lyophilized hydrolyzed collagen). Standardized liver trauma was made, and the hemostatic agent was applied. Animals in subgroups A7 and B7 were submitted to euthanasia and relaparotomy after seven days, and in subgroups A14 and B14 after 14 days. Macroscopic and microscopic results were evaluated. Results: There was no fluid in the cavity in any of the animals, and adhesions were present in all of them. In the analysis after seven days, the adhesions were grades 3 or 4 and consisted of omentum, small intestine, and abdominal wall (p<0.05). In both groups, the mesh was surrounded by a capsule, which was not observed after 14 days. In the evaluation after 14 days, adhesions were grades 2 or 3 (p>0.05). The microscopic examination showed subacute and chronic reactions, in both groups and in both timepoints, with similar frequency. The intensity of fibrosis always presented positive scores. Microabscesses and xanthomatous macrophages were observed in both groups. Conclusions: There was no superiority of one agent over the other.

Use of hypertonic glucose (10%) in the prevention of postoperative adhesions in rats

ABSTRACT Purpose To evaluate the efficacy of hypertonic glucose (10%), alone or in combination with the corticoid dexamethasone, to prevent peritoneal adhesion following hysterectomy in rats. Methods Forty-two adult rats underwent hysterectomy with peritoneal lavage: G1 - glucose (10%); G2 - glucose (10%) and dexamethasone 3 mg·kg-1; and G3 - physiological saline (PS) 0.9%. Results In the macroscopic analysis after 14 days, G1 had a median score of 1, G2 of 1, and G3 of 2.5 (p < 0.0001), G3 compared to G1 and G2. There was no difference between groups after 28 days. In the microscopic analysis, the median vascular proliferation after 14 days was 2 for G1, 1 for G2, and 3 for G3 (p = 0.0037, G3 vs. G1 and G2). After 28 days, G1 showed a median vascular proliferation score of 2, G2 of 2.5, and G3 of 3 (p < 0.0001, G3 vs. G1 and G2). Regarding the inflammatory reaction after 14 days, G1 had a median score of 2, G2 of 1, and G3 of 3 (p = 0.7916). After 28 days, G1 had a median score of 0.5 (0-1.75), G2 of 1.5, and G3 of 2.5 (p < 0.0001, G3 vs. the others and G2 vs. G1). In the evaluation of fibrosis after 14 days, G1 had a median score of 1, G2 of 1, and G3 of 2.5 (p < 0.0001, G3 vs. G1and G2). After 28 days, G1 had a median fibrosis score of 1, G2: 2, and G3: 2.5 (p < 0.0001), G3 vs. the others andG2 vs. G1). Conclusions The use of hypertonic glucose (10%) solution seems to reduce macroscopic and microscopic pelvic adhesions.

Pancreatectomia secundária à aderência após ovário-histerectomia em uma cadela - relato de caso / Pancreatectomy secondary to adherence after ovary-histerectomy in a female dog - a case report / Pancreatectomía secundaria a una adherencia después de ovario histerectomía en una perra ­ relato de caso

O procedimento cirúrgico eletivo realizado com maior frequência na rotina veterinária é a ovário-histerectomia (OVH), com isso há uma alta casuística de complicações pós-operatórias. Entre elas, pode-se citar piometra de coto, ligadura acidental de ureter, síndrome do ovário remanescente, formação de granulomas inflamatórios e aderências a órgãos. Os granulomas de coto ovariano são formados, geralmente por um fio de sutura utilizado inadequadamente, ou a um sítio de infecção. Tais granulomas podem levar à aderências, inclusive a órgãos próximos ao sítio cirúrgico. O presente relato refere-se a uma cadela, que apresentou granulomas ovarianos com aderências no pâncreas e em diversos órgãos após a ovário-histerectomia. Para a solução do caso, foi realizado uma celiotomia exploratória para avaliação da cavidade abdominal, retirada das aderências das estruturas e das formações granulomatosas, sendo necessária a realização de uma pancreatectomia parcial para a retirada completa do granuloma. Após a cirurgia, o paciente desenvolveu quadro de pancreatite, uma complicação muito comum em cirurgias pancreáticas. Ainda assim, o resultado foi considerado satisfatório, pois a pancreatite foi solucionada e os granulomas removidos, e até a última revisão pós-operatória, o paciente encontrava-se bem clinicamente. A OVH é uma das cirurgias mais realizadas na rotina médico veterinária, ainda assim é negligenciada em diversos quesitos. Portanto, há a necessidade dessa técnica cirúrgica e suas possíveis complicações serem realizadas de maneira correta e efetiva.(AU)

The most frequently elective surgical procedure performed in the veterinary routine is the ovary hysterectomy (OVH). As such, there is a high number of post-operative complications, which include stump pyometra, accidental ligation of the ureter, remnant ovary syndrome, formation of inflammatory granulomas, and organ adhesions. Ovarian stump granulomas are usually formed by suture which has been improperly used, or to infection. Such granulomas can lead to adhesions, also affecting organs close to the surgical site. This report refers to a female dog that presented ovarian granulomas with adhesions to the pancreas and to several organs after ovary-hysterectomy. In order to solve the case, an exploratory celiotomy was performed to assess the abdominal cavity, removing the adhesions of the structures and granulomatous formations, which required the performance of a partial pancreatectomy for the thorough removal of the granuloma. After surgery, the patient developed pancreatitis, a very common complication in pancreatic surgery. Even so, the result was considered satisfactory, as the pancreatitis was resolved and the granulomas removed and until the last post-operative review, the patient was clinically well. OVH is one of the most commonly performed surgeries in the veterinary medical routine, yet it is neglected in several aspects. Therefore, there is a need for the surgical technique and its possible complications to be performed correctly and effectively.(AU)

El procedimiento quirúrgico electivo que se realiza con mayor frecuencia en la rutina veterinaria es la ovario-histerectomía (OVH), con que existe un elevado número de complicaciones postoperatorias. Estos incluyen piometra del muñón, ligadura accidental del uréter, síndrome de ovario remanente, formación de granulomas inflamatorios y adherencias a órganos. Los granulomas del muñón ovárico se forman por lo general por una sutura mal utilizada o en un sitio de infección. Dichos granulomas pueden provocar adherencias, incluso a órganos cercanos al sitio quirúrgico. El presente informe se refiere a una perra, quien presentó granulomas ováricos con adherencias en el páncreas y en varios órganos tras ovario histerectomía. Para la solución del caso se realizó una celiotomía exploratoria para acceder la cavidad abdominal, removiendo las adherencias de las estructuras y formaciones granulomatosas, requiriendo la realización de una pancreatectomía parcial para la extirpación completa del granuloma. Después de la cirugía, la paciente desarrolló pancreatitis, una complicación muy común en la cirugía pancreática. Aun así, el resultado se consideró satisfactorio, ya que se resolvió la pancreatitis y se retiraron los granulomas, y hasta la última revisión postoperatoria la paciente se encontraba clínicamente bien. La OVH es una de las cirugías que se realizan con mayor frecuencia en la rutina médica veterinaria, pero se descuida en varios aspectos. Por tanto, existe la necesidad de que esta técnica quirúrgica y sus posibles complicaciones se realicen de forma correcta y eficaz.(AU)

Pancreatectomia secundária à aderência após ovário-histerectomia em uma cadela - relato de caso / Pancreatectomy secondary to adherence after ovary-histerectomy in a female dog - a case report / Pancreatectomía secundaria a una adherencia después de ovario histerectomía en una perra ­ relato de caso

O procedimento cirúrgico eletivo realizado com maior frequência na rotina veterinária é a ovário-histerectomia (OVH), com isso há uma alta casuística de complicações pós-operatórias. Entre elas, pode-se citar piometra de coto, ligadura acidental de ureter, síndrome do ovário remanescente, formação de granulomas inflamatórios e aderências a órgãos. Os granulomas de coto ovariano são formados, geralmente por um fio de sutura utilizado inadequadamente, ou a um sítio de infecção. Tais granulomas podem levar à aderências, inclusive a órgãos próximos ao sítio cirúrgico. O presente relato refere-se a uma cadela, que apresentou granulomas ovarianos com aderências no pâncreas e em diversos órgãos após a ovário-histerectomia. Para a solução do caso, foi realizado uma celiotomia exploratória para avaliação da cavidade abdominal, retirada das aderências das estruturas e das formações granulomatosas, sendo necessária a realização de uma pancreatectomia parcial para a retirada completa do granuloma. Após a cirurgia, o paciente desenvolveu quadro de pancreatite, uma complicação muito comum em cirurgias pancreáticas. Ainda assim, o resultado foi considerado satisfatório, pois a pancreatite foi solucionada e os granulomas removidos, e até a última revisão pós-operatória, o paciente encontrava-se bem clinicamente. A OVH é uma das cirurgias mais realizadas na rotina médico veterinária, ainda assim é negligenciada em diversos quesitos. Portanto, há a necessidade dessa técnica cirúrgica e suas possíveis complicações serem realizadas de maneira correta e efetiva.(AU)

The most frequently elective surgical procedure performed in the veterinary routine is the ovary hysterectomy (OVH). As such, there is a high number of post-operative complications, which include stump pyometra, accidental ligation of the ureter, remnant ovary syndrome, formation of inflammatory granulomas, and organ adhesions. Ovarian stump granulomas are usually formed by suture which has been improperly used, or to infection. Such granulomas can lead to adhesions, also affecting organs close to the surgical site. This report refers to a female dog that presented ovarian granulomas with adhesions to the pancreas and to several organs after ovary-hysterectomy. In order to solve the case, an exploratory celiotomy was performed to assess the abdominal cavity, removing the adhesions of the structures and granulomatous formations, which required the performance of a partial pancreatectomy for the thorough removal of the granuloma. After surgery, the patient developed pancreatitis, a very common complication in pancreatic surgery. Even so, the result was considered satisfactory, as the pancreatitis was resolved and the granulomas removed and until the last post-operative review, the patient was clinically well. OVH is one of the most commonly performed surgeries in the veterinary medical routine, yet it is neglected in several aspects. Therefore, there is a need for the surgical technique and its possible complications to be performed correctly and effectively.(AU)

El procedimiento quirúrgico electivo que se realiza con mayor frecuencia en la rutina veterinaria es la ovario-histerectomía (OVH), con que existe un elevado número de complicaciones postoperatorias. Estos incluyen piometra del muñón, ligadura accidental del uréter, síndrome de ovario remanente, formación de granulomas inflamatorios y adherencias a órganos. Los granulomas del muñón ovárico se forman por lo general por una sutura mal utilizada o en un sitio de infección. Dichos granulomas pueden provocar adherencias, incluso a órganos cercanos al sitio quirúrgico. El presente informe se refiere a una perra, quien presentó granulomas ováricos con adherencias en el páncreas y en varios órganos tras ovario histerectomía. Para la solución del caso se realizó una celiotomía exploratoria para acceder la cavidad abdominal, removiendo las adherencias de las estructuras y formaciones granulomatosas, requiriendo la realización de una pancreatectomía parcial para la extirpación completa del granuloma. Después de la cirugía, la paciente desarrolló pancreatitis, una complicación muy común en la cirugía pancreática. Aun así, el resultado se consideró satisfactorio, ya que se resolvió la pancreatitis y se retiraron los granulomas, y hasta la última revisión postoperatoria la paciente se encontraba clínicamente bien. La OVH es una de las cirugías que se realizan con mayor frecuencia en la rutina médica veterinaria, pero se descuida en varios aspectos. Por tanto, existe la necesidad de que esta técnica quirúrgica y sus posibles complicaciones se realicen de forma correcta y eficaz.(AU)

Ultrasound with laparoscopy for the diagnosis of abdominal disorders in cattle

ABSTRACT: This study aimed to evaluate laparoscopy with abdominal ultrasound exams to establish accurate diagnosis and prognosis. The experimental design was a prospective clinical study. Nine adult crossbred bovines suffering from abdominal disorders were admitted to the cattle clinic for clinical examinations. Abdominal ultrasound was carried out, and complete blood counts were performed. Subsequently, exploratory laparoscopy was performed. After surgery (exploratory laparoscopy on the right or left side), animals with a severe prognosis or untreatable clinical condition were euthanised and necropsied. During laparoscopy, circumscribed reticuloperitonitis could not be detected, nor could other abnormalities in the cranioventral region of the abdomen previously observed on ultrasound and confirmed during necropsy. However, alterations due to peritoneal damage, such as adhesions, were observed dorsally in addition to alterations in macroscopic aspects of the peritoneal fluid. Exploratory standing laparoscopy through the paralumbar fossae may constitute a supplementary procedure for diagnosing abdominal disorders in cattle, but it is not suitable in cases of diseases characterised by focal lesions concentrated in the cranioventral region of the abdomen. When associated with clinical, laboratory, and ultrasound examinations, this technique may improve the accurate diagnosis and prognosis of abdominal disorders in cattle.

RESUMO: Este estudo teve como objetivo avaliar a laparoscopia com exames de ultrassom abdominal para estabelecer um diagnóstico e prognóstico precisos. O desenho experimental foi um estudo clínico prospectivo. Nove bovinos adultos mestiços com distúrbios abdominais foram utilizados. Os bovinos admitidos na Clínica de Bovinos foram submetidos a exame clínico, adicionalmente foram realizadas hemograma e ultrassonografia abdominal. Posteriormente, foi realizada laparoscopia exploratória. Após a cirurgia (laparoscopia exploratória no lado direito ou esquerdo), nove animais com manifestações clínicas graves e intratáveis foram sacrificados e necropsiados. Durante a laparoscopia, não foi possível detectar reticuloperitonite circunscrita, bem como outras anormalidades na região crânio-ventral do abdome, previamente observadas na ultrassonografia e confirmadas durante a necropsia. No entanto, alterações devido a dano peritoneal, como aderências, foram observadas dorsalmente. É possível que a laparoscopia exploratória em apoio quadrupedal através da fossa paralombar constitua um procedimento complementar para o diagnóstico de distúrbios abdominais em bovinos, embora não seja adequado em casos de doenças caracterizadas por lesões focais concentradas na região cranioventral do abdome. Quando associada a exames clínicos, laboratoriais e de ultrassom, essa técnica pode melhorar o diagnóstico e prognóstico preciso dos distúrbios abdominais em bovinos.

Chronic prostatitis in a dog infected with a smooth strain of Brucella spp

Dogs may be occasionally infected by smooth strains of Brucella spp. The infection is usually associated with the ingestion of contaminated material from parturition or abortion, or other tissues from infected farm animals, particularly cattle and pigs. A 6-year-old, male mixed breed dog from a rural area was admitted at a veterinary clinic for clinical examination. The dog had bilateral perineal hernia with dysuria and dyschezia, as well as small firm testicles with scrotal adhesions. Serological tests, including buffered plate antigen, serum agglutination test, and 2-mercaptoethanol test, were positive for smooth Brucella spp. strains, whereas a rapid slide agglutination test was negative for B. canis. Blood and prostate tissue samples yielded no bacterial isolates. Histopathology demonstrated interstitial lymphoplasmacytic and histiocytic infiltration of the prostate gland, with fibrosis and occasional disruption of glandular architecture. Immunohistochemistry demonstrated abundant Brucella spp. antigens in the cytoplasm of macrophages. This report supports the notion that not only B. canis, but also smooth Brucella spp. must be considered in the differential diagnosis of prostatitis in dogs.(AU)