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1.
Rev. bras. parasitol. vet ; 31(1): e016821, 2022. graf
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1360927

Resumo

Abstract This study aimed to verify the occurrence of Dioctophyme renale in stray dogs in the city of Pelotas, in the state of Rio Grande do Sul, Brazil. The Laboratório Regional de Diagnóstico of the Universidade Federal de Pelotas received 146 wandering dogs for necropsy, sent by the City Hall of Pelotas from March 2012 to January 2020. Among the necropsied animals, seventeen dogs (11.64%) were diagnosed with dioctophymosis. Among these dogs, 11 were parasitized with one specimen in the right kidney, two dogs presented two specimens in the right kidney, and in other two dogs, the parasites were in the abdominal cavity. In one dog, two parasites were found in the left kidney; in another dog, both kidneys were parasitized, with two parasites in the right kidney and one in the left kidney. The data obtained in this study showed that the occurrence of D. renale in stray dogs in the city of Pelotas is high, and D. renale mainly parasitizes the right kidney.


Resumo Este trabalho possui como objetivo verificar a ocorrência de D. renale em cães errantes do município de Pelotas, no Rio Grande do Sul, Brasil. O Laboratório Regional de Diagnóstico da Universidade Federal de Pelotas recebeu 146 cães errantes para necropsia, encaminhados pela Prefeitura Municipal de Pelotas, no período de março de 2012 a janeiro de 2020. Dentre os cães necropsiados, 17 animais foram diagnosticados com dioctofimose, determinando uma ocorrência de 11,64%. Desses animais, onze estavam parasitados com um exemplar no rim direito, dois animais possuíam dois exemplares no rim direito. Em dois animais, os parasitas estavam na cavidade abdominal; em um animal havia, dois parasitas no rim esquerdo e noutro animal os dois rins estavam parasitados, tendo dois exemplares no rim direito e um exemplar no rim esquerdo. Os dados obtidos neste trabalho permitem concluir que é elevada a ocorrência de D. renale nos cães errantes do município de Pelotas, parasitando principalmente o rim direito.


Assuntos
Animais , Cães , Infecções por Enoplida/veterinária , Infecções por Enoplida/epidemiologia , Dioctophymatoidea , Doenças do Cão/diagnóstico , Doenças do Cão/parasitologia , Doenças do Cão/epidemiologia , Brasil/epidemiologia , Rim/parasitologia , Animais Selvagens
2.
Acta sci. vet. (Impr.) ; 50(supl.1): 772, 2022. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1363814

Resumo

Background: Penile fracture is a pathology of young cattle that perform precocious and disordered breeding. The incompatibility of height between males and females and sodomy between males cause a great pressure on the sigmoid flexure and retractor muscle of the penis, which are the main causes and sites of organ injury. This study aimed to describe the epidemiological and pathological aspects of penile fractures observed in young bulls raised in pre-export feedlots (PEFs) in southern Brazil. Cases: In 2 PEFs located in the municipalities of Pelotas (property 1) and Capão do Leão (property 2), 3 male cattle [1 from property 1 and 2 from property 2] presented subcutaneous edema in the foreskin and perineum, associated with dysuria. The evolution of the clinical picture was approximately 20 days in all cases, with evolution to death. The bovine necropsied on property 1 had an increased volume and inguinal edema, involving the penis and scrotal sac. Necrosis of the subcutaneous tissue and local musculature was also observed. The testicles were surrounded by the necrotic tissue, and the right testis was swollen, with flaccid parenchyma adhering to the tunica albuginea. In the necropsy of 1 bull from property 2, an increase in the inguinal volume was observed, with an extensive area of necrosis and edema extending from the prepuce to the caudal musculature of the scrotal sac. There were also marked varicosis in the sigmoid flexure and necrosis of the adjacent region, without the involvement of the corpus cavernosum. During the necropsy of the 2 young bulls, fragments of organs from the abdominal, thoracic, and brain cavities were collected and fixed in 10% buffered formalin. From the bull of the property 2, an anatomical piece consisting of the penis, prepuce, and testicles was also collected and fixed in 10% buffered formalin. After 48 h, the tissue samples were cleaved, embedded in paraffin, cut into 3-µm-thick sections, and stained using hematoxylin and eosin (HE). A histological evaluation of the penile lesions in both cattle revealed intense hemorrhage, congestion, and necrosis of the muscles and tissues adjacent to the corpus cavernosum. In addition to areas of dystrophic calcification, neutrophil and macrophage infiltration was also observed. In the bull from the property 1, an intense edema and proliferation of fibrous tissue surrounding the urethra were noted. There were also marked tubular degeneration and intense infiltration of neutrophils, lymphocytes, and macrophages in the inner portion of the tunica albuginea. Discussion: In the present cases, the diagnosis was based on epidemiological data associated with clinical signs and pathology. The macroscopic lesions observed were probably due to the involvement of blood vessels adjacent to the penis, which suffered trauma during sodomy mating among cattle. These lesions have been described in other reports of this pathology and in diseases, such as acropostitis-phimosis, fibropapilloma of the glans, preputial abscess, and urolithiasis, and the differential diagnosis of these diseases must be carried out, as they have different etiologies. In the bulls of the present study, no lesions were observed in the corpus cavernosum, and this condition was attributed to the presence of varicosis and accumulation of urine in the prepuce, due to the difficulty in exposing the penis. Histologically, there were intense hemorrhage, congestion, and necrosis of the muscles and tissues adjacent to the corpus cavernosum, with the infiltration of neutrophils and macrophages, and areas of dystrophic calcification. The presence of necrotic lesions in tissues adjacent to the penis may be related to hypoxia, vascular lesions, or the action of chemical elements present in the urine. In both cases, vascular lesions were present, which were attributed to the main triggering factor for the disease.


Assuntos
Animais , Masculino , Bovinos , Pênis/lesões , Ruptura/veterinária , Comportamento Sexual Animal , Brasil
3.
Acta sci. vet. (Impr.) ; 49(suppl.1): Pub.626-Jan 4, 2021. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1458489

Resumo

Background: Extraskeletal osteosarcoma (EOS), a rare variant of osteosarcoma (OS), is a malignant neoplasm that develops insoft tissues without primary bone involvement. This study aims to describe a case of EOS with a mediastinal location in a canine.Case: A 10-year-old male Uruguayan Cimarron dog, was presented to the Laboratório Regional de Diagnóstico, Faculdadede Veterinária, Universidade Federal de Pelotas (LRD/FV/UFPel) for necropsy. The dog had a history of submandibularswelling, progressive hind limb paralysis, muscle atrophy, and breathing difficulties. During necropsy, in the thoracic cavity,approximately 900 mL of serosanguinous exudate and a reddish-brown, bossed mediastinal mass measuring 15.0 cm in thelongest axis were also noted. The lung exhibited multifocal to coalescent, white, firm nodules extending from the pleurato the parenchyma and measuring up to 4.5 cm in diameter. In the parietal and occipital region of the brain, a matte winemass measuring 2.3 cm in the longest axis was observed. Fragments of the neoplastic mass, organs of the abdominal andthoracic cavities, and the brain were harvested and fixed in 10% buffered formalin. After 48 h, the samples were routinelyprocessed, incorporated in paraffin, cut into 3 µm-thick sections, and stained using Hematoxylin and Eosin (HE). Selectedsections of the neoplasm, the lung, and the brain were subjected to Von Kossa staining and immunohistochemical (IHC)analysis. For IHC, primary anti-cytokeratin monoclonal antibodies (clone AE1 / AE3, BioCare Medical) at a 1:100 dilution, vimentin (clone V9, BioCare Medical) at a 1:100 dilution, S100 Protein (clone 15E2E2, BioCare Medical) at a 1:100dilution, and Ki67 (SP6 clone, BioCare Medical) at a 1:50 dilution were used. Immunostaining ...


Assuntos
Masculino , Animais , Cães , Cães , Metástase Neoplásica , Neoplasias do Mediastino/veterinária , Osteossarcoma/veterinária , Neoplasias Encefálicas/veterinária , Neoplasias Pulmonares/veterinária
4.
Acta sci. vet. (Online) ; 49(suppl.1): Pub. 626, Apr. 9, 2021. ilus
Artigo em Inglês | VETINDEX | ID: vti-763434

Resumo

Background: Extraskeletal osteosarcoma (EOS), a rare variant of osteosarcoma (OS), is a malignant neoplasm that develops insoft tissues without primary bone involvement. This study aims to describe a case of EOS with a mediastinal location in a canine.Case: A 10-year-old male Uruguayan Cimarron dog, was presented to the Laboratório Regional de Diagnóstico, Faculdadede Veterinária, Universidade Federal de Pelotas (LRD/FV/UFPel) for necropsy. The dog had a history of submandibularswelling, progressive hind limb paralysis, muscle atrophy, and breathing difficulties. During necropsy, in the thoracic cavity,approximately 900 mL of serosanguinous exudate and a reddish-brown, bossed mediastinal mass measuring 15.0 cm in thelongest axis were also noted. The lung exhibited multifocal to coalescent, white, firm nodules extending from the pleurato the parenchyma and measuring up to 4.5 cm in diameter. In the parietal and occipital region of the brain, a matte winemass measuring 2.3 cm in the longest axis was observed. Fragments of the neoplastic mass, organs of the abdominal andthoracic cavities, and the brain were harvested and fixed in 10% buffered formalin. After 48 h, the samples were routinelyprocessed, incorporated in paraffin, cut into 3 µm-thick sections, and stained using Hematoxylin and Eosin (HE). Selectedsections of the neoplasm, the lung, and the brain were subjected to Von Kossa staining and immunohistochemical (IHC)analysis. For IHC, primary anti-cytokeratin monoclonal antibodies (clone AE1 / AE3, BioCare Medical) at a 1:100 dilution, vimentin (clone V9, BioCare Medical) at a 1:100 dilution, S100 Protein (clone 15E2E2, BioCare Medical) at a 1:100dilution, and Ki67 (SP6 clone, BioCare Medical) at a 1:50 dilution were used. Immunostaining ...(AU)


Assuntos
Animais , Masculino , Cães , Neoplasias do Mediastino/veterinária , Osteossarcoma/veterinária , Cães , Metástase Neoplásica , Neoplasias Pulmonares/veterinária , Neoplasias Encefálicas/veterinária
5.
Rev. bras. ciênc. vet ; 27(4): 204-206, out./dez. 2020.
Artigo em Português | LILACS, VETINDEX | ID: biblio-1369964

Resumo

O objetivo deste trabalho foi descrever os dados de um estudo retrospectivo nos registros de 34 anos atividade de um laboratório de diagnóstico sobre as causas de diarreia em bezerros na região sul do Rio Grande do Sul. Foram revisados os protocolos de necropsia e materiais desta espécie encaminhados ao Laboratório Regional de Diagnóstico da Faculdade de Veterinária da Universidade Federal de Pelotas. Foram diagnosticados 94 casos de bezerros com diarreia, destes, 44,7% foram de causas parasitárias e 34,0% de causas bacterianas. Diarreia de causa parasitária foi a mais importante na região sul do Rio Grande do Sul e afetou bezerros de três a 12 meses de idade. A ocorrência de diarreia em animais mesmo lactentes pode estar associada a fatores ambientais e a forma de manejo no qual esses animais são mantidos. As enfermidades bacterianas foram, também, importantes causas de diarreia em bezerros de até três meses de idade na região.


The objective of this work was to describe the data from a retrospective study in the records of 34 years of activity in a diagnostic laboratory on the diarrhea causes of in calves in the southern region of Rio Grande do Sul. All necropsy protocols and materials received in the Regional Diagnostic Laboratory of the Veterinary School of the Federal University of Pelotas were reviewed. Ninety-four cases of calves with diarrhea were diagnosed, of these, 44.7% were caused by parasitic infections and 34.0% by bacterial infections. Parasites as cause of diarrhea was the most important diagnostic in southern Rio Grande do Sul and affected calves from three to 12 months of age. The occurrence of diarrhea in animals even infants may be associated with environmental factors and the form of management that these animals are kept. Bacterial diseases are also important causes of diarrhea in calves up to three months of age in the region.


Assuntos
Animais , Bovinos , Doenças Parasitárias em Animais/diagnóstico , Infecções Bacterianas/veterinária , Bovinos/parasitologia , Diarreia/veterinária , Escherichia coli/patogenicidade , Estudos Retrospectivos , Nematoides/parasitologia
6.
Acta sci. vet. (Impr.) ; 48(suppl.1): Pub.507-4 jan. 2020. ilus
Artigo em Português | VETINDEX | ID: biblio-1458334

Resumo

Background: Xanthium spp., the cockleburs, are invasive plants found on riverbanks, lakeshores, and floodplains. Ingestion of Xanthium sprouts or fruit causes cocklebur toxicosis, which is characterized clinically and pathologically by acuteliver failure. The main lesion observed is an accentuation of the lobular pattern of the liver (nutmeg appearance), whichis microscopically characterized by coagulation necrosis in the centrilobular region, hepatocyte degeneration in otherregions of the hepatic parenchyma, and sinusoidal congestion. The objective of this study was to describe an outbreak ofspontaneous cattle poisoning by ingestion of Xanthium spp. sprouts in the southern region of Rio Grande do Sul, Brazil.Case: In September 2018, a beef cattle farm located in Rio Grande county, Rio Grande do Sul, Brazil, reported significantmortality of cattle in a short period of time. There were 700 cattle on the property, divided by class into three differentherds, all kept under extensive conditions in native wetlands. All fields were heavily infested by cocklebur, with mostplants in the budding stage. Twenty animals developed muscle tremors, salivation, aggression, and recumbency. Theclinical course lasted 24 to 48 h, with a lethal outcome in all cases. An 18-month-old male crossbreed bovine was sent tothe Regional Diagnostic Laboratory of the Universidade Federal de Pelotas (UFPel) School of Veterinary Medicine fornecropsy. Gross examination revealed ascites and accentuation of the lobular pattern of the liver. Organ fragments wereharvested and fixed in 10% buffered formalin. Microscopically, the liver exhibited marked coagulation necrosis in thecentrilobular region and vacuolization of the hepatocyte cytoplasm in the midzonal and periportal regions. In the brain,there was perineuronal edema, cytoplasmic shrinkage and basophilia, gliosis, and satellitosis...


Assuntos
Animais , Bovinos , Doença Hepática Induzida por Substâncias e Drogas/veterinária , Hepatopatias/veterinária , Intoxicação por Plantas/veterinária , Xanthium/intoxicação , Magnoliopsida , Plantas Tóxicas , Áreas Alagadas
7.
Acta sci. vet. (Impr.) ; 48(suppl.1): Pub.583-4 jan. 2020. ilus
Artigo em Português | VETINDEX | ID: biblio-1458410

Resumo

Background: Multiple myelomas (MM) are malignant neoplasms originating in the bone marrow plasmacytes, and are characterized by the presence of persistent hyperglobulinemia. Although they are rarely found in domestic animals, the canine species is most affected. In felines, they represent less than 1% of hematopoietic neoplasms, and mainly occur in older animals aged 10-12 years. The aim of the present study was to report a case of multiple myeloma, with extramedullary plasmocytosis in a feline. Case: A 3-year-old feline, female, mixed breed, with a history of apathy, anorexia, halitosis, and vomiting was referred to the Laboratório Regional de Diagnóstico (LRD) at the Universidade Federal de Pelotas (UFPel). Oral examination revealed a cyanotic oral mucosa and ulcerative lesions on the gingiva. The necropsy showed generalized lymphadenomegaly, splenomegaly, and hemorrhagic diathesis. Organ fragments were collected and fixed in 10% buffered formalin. After 48 h, the samples were cleaved, embedded in paraffin, and stained using the routine hematoxylin and eosin technique. Selected sections were subjected to immunohistochemistry (IHC) using the streptavidin-biotin method. The CD79a, CD138, CD3, and MUM1 antibodies were used. Histopathological evaluation of the bone marrow revealed hypercellularity with predominant round pleomorphic cells (90%), which presented an eccentric basophilic nucleus and abundant eosinophilic cytoplasm. The same neoplastic cells infiltrated the gingival mucosa, lymph nodes, spleen, liver, kidneys, heart, lungs, and brain. The IHC showed positive immunostaining for MUM1 and CD138 antibodies. Discussion: The diagnosis of MM in the present study was based on histopathology and by IHC. According to the literature, the presence of neoplastic plasmocytes in the bone marrow (>20%)...


Assuntos
Feminino , Animais , Gatos , Medula Óssea/patologia , Mieloma Múltiplo/patologia , Mieloma Múltiplo/veterinária , Neoplasias Hematológicas/veterinária , Imuno-Histoquímica/veterinária , Neoplasias da Medula Espinal/veterinária
8.
R. bras. Ci. Vet. ; 27(4): 204-206, 2020.
Artigo em Português | VETINDEX | ID: vti-17389

Resumo

The objective of this work was to conduct a retrospective study of causes of diarrhea in calves in southern Rio Grande do Sul between 1980 and 2014. All necropsy protocols and materials received in the Regional Diagnostic Laboratory of the Veterinary School of the Federal University of Pelotas were reviewed. Ninety-four cases of calves with diarrhea were diagnosed, of these, 44.7% were caused by parasitic infections and 34.0% by bacterial infections. Parasites as cause of diarrhea was the most important diagnostic in southern Rio Grande do Sul and affected calves from three to 12 months of age. The occurrence of diarrhea in animals even infants may be associated with environmental factors and the form of management that these animals are kept. Bacterial diseases are also important causes of diarrhea in calves up to three months of age in the region.(AU)


O objetivo deste trabalho foi descrever os dados de um estudo retrospectivo nos registros de 34 anos atividade de um laboratório de diagnóstico sobre as causas de diarreia em bezerros na região sul do Rio Grande do Sul. Foram revisados os protocolos de necropsia e materiais desta espécie encaminhados ao Laboratório Regional de Diagnóstico da Faculdade de Veterinária da Universidade Federal de Pelotas. Foram diagnosticados 94 casos de bezerros com diarreia, destes, 44,7% foram de causas parasitárias e 34,0% de causas bacterianas. Diarreia de causa parasitária foi a mais importante na região sul do Rio Grande do Sul e afetou bezerros de três a 12 meses de idade. A ocorrência de diarreia em animais mesmo lactentes pode estar associada a fatores ambientais e a forma de manejo no qual esses animais são mantidos. As enfermidades bacterianas foram, também, importantes causas de diarreia em bezerros de até três meses de idade na região.(AU)


Assuntos
Animais , Bovinos , Bovinos/parasitologia , Diarreia/parasitologia , Diarreia/veterinária , Colimetria , Infecções por Escherichia coli/parasitologia
9.
Acta sci. vet. (Online) ; 48(suppl.1): Pub. 583, 15 dez. 2020. ilus
Artigo em Português | VETINDEX | ID: vti-33448

Resumo

Background: Multiple myelomas (MM) are malignant neoplasms originating in the bone marrow plasmacytes, and are characterized by the presence of persistent hyperglobulinemia. Although they are rarely found in domestic animals, the canine species is most affected. In felines, they represent less than 1% of hematopoietic neoplasms, and mainly occur in older animals aged 10-12 years. The aim of the present study was to report a case of multiple myeloma, with extramedullary plasmocytosis in a feline. Case: A 3-year-old feline, female, mixed breed, with a history of apathy, anorexia, halitosis, and vomiting was referred to the Laboratório Regional de Diagnóstico (LRD) at the Universidade Federal de Pelotas (UFPel). Oral examination revealed a cyanotic oral mucosa and ulcerative lesions on the gingiva. The necropsy showed generalized lymphadenomegaly, splenomegaly, and hemorrhagic diathesis. Organ fragments were collected and fixed in 10% buffered formalin. After 48 h, the samples were cleaved, embedded in paraffin, and stained using the routine hematoxylin and eosin technique. Selected sections were subjected to immunohistochemistry (IHC) using the streptavidin-biotin method. The CD79a, CD138, CD3, and MUM1 antibodies were used. Histopathological evaluation of the bone marrow revealed hypercellularity with predominant round pleomorphic cells (90%), which presented an eccentric basophilic nucleus and abundant eosinophilic cytoplasm. The same neoplastic cells infiltrated the gingival mucosa, lymph nodes, spleen, liver, kidneys, heart, lungs, and brain. The IHC showed positive immunostaining for MUM1 and CD138 antibodies. Discussion: The diagnosis of MM in the present study was based on histopathology and by IHC. According to the literature, the presence of neoplastic plasmocytes in the bone marrow (>20%)...(AU)


Assuntos
Animais , Feminino , Gatos , Mieloma Múltiplo/patologia , Mieloma Múltiplo/veterinária , Neoplasias Hematológicas/veterinária , Medula Óssea/patologia , Imuno-Histoquímica/veterinária , Neoplasias da Medula Espinal/veterinária
10.
Acta sci. vet. (Online) ; 48(suppl.1): Pub. 507, 5 jun. 2020. ilus
Artigo em Português | VETINDEX | ID: vti-31759

Resumo

Background: Xanthium spp., the cockleburs, are invasive plants found on riverbanks, lakeshores, and floodplains. Ingestion of Xanthium sprouts or fruit causes cocklebur toxicosis, which is characterized clinically and pathologically by acuteliver failure. The main lesion observed is an accentuation of the lobular pattern of the liver (nutmeg appearance), whichis microscopically characterized by coagulation necrosis in the centrilobular region, hepatocyte degeneration in otherregions of the hepatic parenchyma, and sinusoidal congestion. The objective of this study was to describe an outbreak ofspontaneous cattle poisoning by ingestion of Xanthium spp. sprouts in the southern region of Rio Grande do Sul, Brazil.Case: In September 2018, a beef cattle farm located in Rio Grande county, Rio Grande do Sul, Brazil, reported significantmortality of cattle in a short period of time. There were 700 cattle on the property, divided by class into three differentherds, all kept under extensive conditions in native wetlands. All fields were heavily infested by cocklebur, with mostplants in the budding stage. Twenty animals developed muscle tremors, salivation, aggression, and recumbency. Theclinical course lasted 24 to 48 h, with a lethal outcome in all cases. An 18-month-old male crossbreed bovine was sent tothe Regional Diagnostic Laboratory of the Universidade Federal de Pelotas (UFPel) School of Veterinary Medicine fornecropsy. Gross examination revealed ascites and accentuation of the lobular pattern of the liver. Organ fragments wereharvested and fixed in 10% buffered formalin. Microscopically, the liver exhibited marked coagulation necrosis in thecentrilobular region and vacuolization of the hepatocyte cytoplasm in the midzonal and periportal regions. In the brain,there was perineuronal edema, cytoplasmic shrinkage and basophilia, gliosis, and satellitosis...(AU)


Assuntos
Animais , Bovinos , Xanthium/intoxicação , Intoxicação por Plantas/veterinária , Hepatopatias/veterinária , Doença Hepática Induzida por Substâncias e Drogas/veterinária , Plantas Tóxicas , Magnoliopsida , Áreas Alagadas
11.
Rev. bras. ciênc. vet ; 27(4): 204-206, out./dez. 2020.
Artigo em Português | LILACS, VETINDEX | ID: biblio-1491691

Resumo

The objective of this work was to conduct a retrospective study of causes of diarrhea in calves in southern Rio Grande do Sul between 1980 and 2014. All necropsy protocols and materials received in the Regional Diagnostic Laboratory of the Veterinary School of the Federal University of Pelotas were reviewed. Ninety-four cases of calves with diarrhea were diagnosed, of these, 44.7% were caused by parasitic infections and 34.0% by bacterial infections. Parasites as cause of diarrhea was the most important diagnostic in southern Rio Grande do Sul and affected calves from three to 12 months of age. The occurrence of diarrhea in animals even infants may be associated with environmental factors and the form of management that these animals are kept. Bacterial diseases are also important causes of diarrhea in calves up to three months of age in the region.


O objetivo deste trabalho foi descrever os dados de um estudo retrospectivo nos registros de 34 anos atividade de um laboratório de diagnóstico sobre as causas de diarreia em bezerros na região sul do Rio Grande do Sul. Foram revisados os protocolos de necropsia e materiais desta espécie encaminhados ao Laboratório Regional de Diagnóstico da Faculdade de Veterinária da Universidade Federal de Pelotas. Foram diagnosticados 94 casos de bezerros com diarreia, destes, 44,7% foram de causas parasitárias e 34,0% de causas bacterianas. Diarreia de causa parasitária foi a mais importante na região sul do Rio Grande do Sul e afetou bezerros de três a 12 meses de idade. A ocorrência de diarreia em animais mesmo lactentes pode estar associada a fatores ambientais e a forma de manejo no qual esses animais são mantidos. As enfermidades bacterianas foram, também, importantes causas de diarreia em bezerros de até três meses de idade na região.


Assuntos
Animais , Bovinos , Bovinos/parasitologia , Colimetria , Diarreia/parasitologia , Diarreia/veterinária , Infecções por Escherichia coli/parasitologia
12.
Ciênc. Anim. (Impr.) ; 29(1): 129-134, 2019. ilus
Artigo em Português | VETINDEX | ID: biblio-1472465

Resumo

Melanomas são neoplasias cutâneas, com origem em melanócitos. Estes neoplasmas são denominados como lesões melanocíticas e são classificados como nevo melanocítico, melanoma anaplásico e melanoma dérmico. Em equinos são mais frequentes em animais de pelagem tordilha. O objetivo deste trabalho foi relatar um caso de melanoma anaplásico, em um equino de pelagem tordilha encaminhado ao Laboratório Regional de Diagnóstico (LRD), da Faculdade de Veterinária da Universidade Federal de Pelotas (UFPel). No exame externo do cadáver foram observadas massas enegrecidas, sólidas, multilobuladas na região ventral da cauda, períneo e lábio superior. Na necropsia, foram observadas massas com as mesmas características nos linfonodos, músculos dos membros posteriores e no côndilo do osso occipital. Na avaliação histopatológica, de todos os tecidos, observou-se a proliferação de células com núcleos arredondados e abundante citoplasma, contendo grande quantidade de grânulos de melanina. Mitoses eram frequentes e havia acentuado pleomorfismo celular. Com base nos achados macroscópicos e microscópicos foi diagnosticado melanoma anaplásico.


Melanomas are cutaneous neoplasms, originating in melanocytes. These neoplasms are referred to as melanocytic lesions, and are classified as melanocytic nevus, anaplastic melanoma and dermal melanoma. In equines, they are more frequent in animals of tordilha coat. The objective of this study was to report a case of anaplastic melanoma in a tordilha fur horse referred to the Regional Diagnostic Laboratory of the Veterinary School of the Federal University of Pelotas. In the external examination of the cadaver, blackened, solid masses, multilobulated in the ventral region of the tail, perineum and upper lip were observed. At necropsy, there were masses with the same characteristics in lymph nodes, muscles of the hind limbs and in the condyle of the occipital bone. Histologically it was observed in all tissues, proliferation of cells with rounded nuclei, and abundant cytoplasm, containing large amount of melanin granules. Mitoses were frequent and there was marked cellular pleomorphism. Based on macroscopic and microscopic findings, anaplastic melanoma was diagnosed.


Assuntos
Animais , Cavalos , Melanoma/patologia , Melanoma/veterinária , Neoplasias Cutâneas/veterinária
13.
Acta sci. vet. (Impr.) ; 47(suppl.1): Pub.424-2019. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1458188

Resumo

Background: Primary pulmonary neoplasia is rare in domestic cats, with fewer than 1% of all tumors diagnosed in thisspecies. Primary lung tumors have a high percentage of metastases, observed in up to 75% of cases in cats. The lung-digitsyndrome is characterized by primary pulmonary neoplasms with metastases to the extremities of the limbs, mainly distalphalanges, possibly involving several digits and more than one limb. This report describes a case of pulmonary carcinomametastasis in a cat digit.Case: A 16-year-old neutered female cat was showing increased volume of the fourth digit was examined at the Universityof Caxias do Sul veterinary clinic. The animal also showed signs of progressive weight loss, apathy and limping on theright thoracic limb. After clinical evaluation, the animal was sent for radiographic examination of the right metacarpal/phalangeal region and the thorax. A radiopaque structure was observed with discreet central regions of radiolucency,measuring approximately 3 cm in height, 3.4 cm in length and 2.4 cm in depth in the left caudal lung, suggesting neoplasiaor pulmonary abscess. Digit image revealed osteolysis of the right and middle distal phalanx measuring 2 cm in height, 3cm in breadth and 1 cm in length. In view of these radiographic changes, we performed fine needle aspiration cytology ofthe digit and a nodule in the region of the skeletal musculature of the right thoracic limb. Cytological evaluation revealedcells had cilia on their surface (compatible with respiratory epithelium). The cytologic findings of the fine-needle biopsywere suggestive of carcinoma. After stabilization, the digit was amputated. The material was sent to the laboratory of theFederal University of Pelotas for histopathological examination...


Assuntos
Feminino , Animais , Gatos , Carcinoma/veterinária , Dedos do Pé/patologia , Metacarpo/diagnóstico por imagem , Metástase Neoplásica , Neoplasias Pulmonares/veterinária , Membro Anterior
14.
Ciênc. Anim. (Impr.) ; 29(1): 129-134, 2019. ilus
Artigo em Português | VETINDEX | ID: vti-21624

Resumo

Melanomas são neoplasias cutâneas, com origem em melanócitos. Estes neoplasmas são denominados como lesões melanocíticas e são classificados como nevo melanocítico, melanoma anaplásico e melanoma dérmico. Em equinos são mais frequentes em animais de pelagem tordilha. O objetivo deste trabalho foi relatar um caso de melanoma anaplásico, em um equino de pelagem tordilha encaminhado ao Laboratório Regional de Diagnóstico (LRD), da Faculdade de Veterinária da Universidade Federal de Pelotas (UFPel). No exame externo do cadáver foram observadas massas enegrecidas, sólidas, multilobuladas na região ventral da cauda, períneo e lábio superior. Na necropsia, foram observadas massas com as mesmas características nos linfonodos, músculos dos membros posteriores e no côndilo do osso occipital. Na avaliação histopatológica, de todos os tecidos, observou-se a proliferação de células com núcleos arredondados e abundante citoplasma, contendo grande quantidade de grânulos de melanina. Mitoses eram frequentes e havia acentuado pleomorfismo celular. Com base nos achados macroscópicos e microscópicos foi diagnosticado melanoma anaplásico.(AU)


Melanomas are cutaneous neoplasms, originating in melanocytes. These neoplasms are referred to as melanocytic lesions, and are classified as melanocytic nevus, anaplastic melanoma and dermal melanoma. In equines, they are more frequent in animals of tordilha coat. The objective of this study was to report a case of anaplastic melanoma in a tordilha fur horse referred to the Regional Diagnostic Laboratory of the Veterinary School of the Federal University of Pelotas. In the external examination of the cadaver, blackened, solid masses, multilobulated in the ventral region of the tail, perineum and upper lip were observed. At necropsy, there were masses with the same characteristics in lymph nodes, muscles of the hind limbs and in the condyle of the occipital bone. Histologically it was observed in all tissues, proliferation of cells with rounded nuclei, and abundant cytoplasm, containing large amount of melanin granules. Mitoses were frequent and there was marked cellular pleomorphism. Based on macroscopic and microscopic findings, anaplastic melanoma was diagnosed.(AU)


Assuntos
Animais , Melanoma/veterinária , Neoplasias Cutâneas/veterinária , Cavalos , Melanoma/patologia
15.
Acta sci. vet. (Online) ; 47(suppl.1): Pub. 424, Sept. 28, 2019. ilus
Artigo em Inglês | VETINDEX | ID: vti-23838

Resumo

Background: Primary pulmonary neoplasia is rare in domestic cats, with fewer than 1% of all tumors diagnosed in thisspecies. Primary lung tumors have a high percentage of metastases, observed in up to 75% of cases in cats. The lung-digitsyndrome is characterized by primary pulmonary neoplasms with metastases to the extremities of the limbs, mainly distalphalanges, possibly involving several digits and more than one limb. This report describes a case of pulmonary carcinomametastasis in a cat digit.Case: A 16-year-old neutered female cat was showing increased volume of the fourth digit was examined at the Universityof Caxias do Sul veterinary clinic. The animal also showed signs of progressive weight loss, apathy and limping on theright thoracic limb. After clinical evaluation, the animal was sent for radiographic examination of the right metacarpal/phalangeal region and the thorax. A radiopaque structure was observed with discreet central regions of radiolucency,measuring approximately 3 cm in height, 3.4 cm in length and 2.4 cm in depth in the left caudal lung, suggesting neoplasiaor pulmonary abscess. Digit image revealed osteolysis of the right and middle distal phalanx measuring 2 cm in height, 3cm in breadth and 1 cm in length. In view of these radiographic changes, we performed fine needle aspiration cytology ofthe digit and a nodule in the region of the skeletal musculature of the right thoracic limb. Cytological evaluation revealedcells had cilia on their surface (compatible with respiratory epithelium). The cytologic findings of the fine-needle biopsywere suggestive of carcinoma. After stabilization, the digit was amputated. The material was sent to the laboratory of theFederal University of Pelotas for histopathological examination...(AU)


Assuntos
Animais , Feminino , Gatos , Carcinoma/veterinária , Neoplasias Pulmonares/veterinária , Metástase Neoplásica , Dedos do Pé/patologia , Metacarpo/diagnóstico por imagem , Membro Anterior
16.
Acta sci. vet. (Online) ; 45: 1-6, 2017. tab
Artigo em Português | VETINDEX | ID: vti-16955

Resumo

Background: Escherichia coli (E. coli) is an enteropathogen that commonly causes diarrhea in calves. However, not all E. coli isolates are pathogenic. The aim of this study was to identify E. coli virulence factors derived from fecal samples collected in the southern region of Rio Grande do Sul state (RS) from calves with and without diarrhea, as well as investigate the antimicrobial susceptibility of E. coli isolates from calves with diarrhea. Materials, Methods & Results: Forty stool samples were collected in 12 farms, each one from calves having one day to six months of age, with and without diarrhea. The total DNA of from these isolates was extracted and a PCR using primers specific for the virulence factors Stx1, Eae, F41, F5 and STa was conducted. The susceptibility testing used the disk diffusion method and the susceptibility profile was evaluated against the following antimicrobials: ampicillin, penicillin, chloramphenicol, enrofloxacin, gentamicin, trimethoprim, sulfonamide, tetracycline and streptomycin. From all calves, 15 (15/40, 37.5%) had diarrheal stools and 25 (25/40, 62.5%) had normal or semi-liquid stools. Twelve (12/40; 30%) E. coli isolates showed at least one virulence factor. These factors were found in four isolates (4/15; 26.6%) from diarrheal stools and eight isolates (8/25; 28.5%) from normal stool. The Stx1 factor was identified in five isolates (5/40; 12.5%), and the Eae and the Sta factors in one (1/40; 0.2%) and in atypical associations between Stx1 and Eae and also between Eae and F41 in two isolates (2/40; 0.5%). Also, the Eae and Sta factors were identified in one isolate (1/40; 0.2%). The susceptibility test showed resistance to penicillin and tetracycline in 93% and 80% of the tested isolates, respectively. Discussion: The identification of virulence factors is necessary because E. coli is an enterobacterium present in calves gastrointestinal tract, to prove its pathogenicity. […](AU)


Assuntos
Animais , Bovinos , Escherichia coli Enteropatogênica/patogenicidade , Fezes/parasitologia , Fatores de Virulência/isolamento & purificação
17.
Pesqui. vet. bras ; 37(8): 797-801, Aug. 2017. tab
Artigo em Português | LILACS, VETINDEX | ID: biblio-895499

Resumo

Foi realizado um levantamento das doenças parasitárias de bovinos e ovinos diagnosticadas na região sul do Rio Grande do Sul, de janeiro de 1978 a dezembro de 2014 no Laboratório Regional de Diagnóstico da Universidade Federal de Pelotas. Em bovinos 10,1% de todos os diagnosticos tratavam-se de parasitoses, das quais a mais frequente foi a tristeza parasitária bovina, com 55,1% dos surtos. As parasitoses gastrintestinais mistas foram diagnosticadas em 22,35% dos casos, a hemoncose em 4,36%, a dictiocaulose em 3,52%, a fasciolose em 2,68% e a eimeriose em 1,84%. Em ovinos 33,6% dos diagnósticos realizados eram parasitoses, sendo as mais frequentes as parasitoses gastrintestinais mistas (42,7%), a hemoncose (35,4%), a coenurose (9,1%) e a fasciolose (4,4%). Estima-se que as perdas somente por mortalidade, decorrentes de doenças parasitárias em bovinos somam aproximadamente R$16.968.000/ano. Na espécie ovina as perdas econômicas causadas por mortalidade de origem parasitária são de aproximadamente R$2.016.000/ano na região sul do Rio Grande do Sul. Foi possível concluir que, em bovinos, na região sul do Rio Grande do Sul, os agentes da TPB são os principais causadores de perdas econômicas, seguidos pelas parasitoses mistas. Em ovinos a parasitose gastrintestinal mista e a hemoncose, juntas, representam mais de 70% dos diagnósticos realizados.(AU)


A survey of parasitic diseases of cattle and sheep diagnosed in Southern Brazil, from January 1978 to December 2014, was conducted in the Laboratório Regional de Diagnóstico, of Universidade Federal de Pelotas. In cattle 10.1% of all cases diagnosed were parasitic diseases, of which the most common was tick fever with 55.1% of cases. Mixed gastrintestinal parasitosis was diagnosed in 22.35% of cases, hemonchosis in 4.36%, dyctiocaulosis in 3.52%, fluke infection in 2.68%, and eimeriosis in 1.84% of the cases. In sheep 33.6% of the diagnoses was parasitosis. In sheep mixed gastrintestinal parasitosis was the most frequent with 42.7% of the cases, hemonchosis was observed in 35.4%, coenurosis in 9.1% and fluke infection in 4.4% of the cases. It is estimated that losses through mortality resulting from parasitic diseases in cattle is approximately R$16.968.000/year. In sheep the economic losses through mortality caused by parasites is about R$2.016.000/year. The results of this survey realize the importance of parasitic diseases in ruminants in Southern Brazil, based on data from more than three decades of diagnostic. It was concluded that, in cattle in southern Rio Grande do Sul, the TPB agents are the main cause of economic losses, followed by mixed parasitic infections. In sheep mixed gastrointestinal parasitosis and hemoncose together represent more than 70% of the diagnoses performed.(AU)


Assuntos
Animais , Bovinos , Doenças Parasitárias em Animais/economia , Doenças Parasitárias em Animais/epidemiologia , Ovinos/parasitologia , Gastroenteropatias/parasitologia , Brasil/epidemiologia
18.
Acta sci. vet. (Impr.) ; 45: 1-6, 2017. tab
Artigo em Português | VETINDEX | ID: biblio-1457604

Resumo

Background: Escherichia coli (E. coli) is an enteropathogen that commonly causes diarrhea in calves. However, not all E. coli isolates are pathogenic. The aim of this study was to identify E. coli virulence factors derived from fecal samples collected in the southern region of Rio Grande do Sul state (RS) from calves with and without diarrhea, as well as investigate the antimicrobial susceptibility of E. coli isolates from calves with diarrhea. Materials, Methods & Results: Forty stool samples were collected in 12 farms, each one from calves having one day to six months of age, with and without diarrhea. The total DNA of from these isolates was extracted and a PCR using primers specific for the virulence factors Stx1, Eae, F41, F5 and STa was conducted. The susceptibility testing used the disk diffusion method and the susceptibility profile was evaluated against the following antimicrobials: ampicillin, penicillin, chloramphenicol, enrofloxacin, gentamicin, trimethoprim, sulfonamide, tetracycline and streptomycin. From all calves, 15 (15/40, 37.5%) had diarrheal stools and 25 (25/40, 62.5%) had normal or semi-liquid stools. Twelve (12/40; 30%) E. coli isolates showed at least one virulence factor. These factors were found in four isolates (4/15; 26.6%) from diarrheal stools and eight isolates (8/25; 28.5%) from normal stool. The Stx1 factor was identified in five isolates (5/40; 12.5%), and the Eae and the Sta factors in one (1/40; 0.2%) and in atypical associations between Stx1 and Eae and also between Eae and F41 in two isolates (2/40; 0.5%). Also, the Eae and Sta factors were identified in one isolate (1/40; 0.2%). The susceptibility test showed resistance to penicillin and tetracycline in 93% and 80% of the tested isolates, respectively. Discussion: The identification of virulence factors is necessary because E. coli is an enterobacterium present in calves gastrointestinal tract, to prove its pathogenicity. […]


Assuntos
Animais , Bovinos , Escherichia coli Enteropatogênica/patogenicidade , Fatores de Virulência/isolamento & purificação , Fezes/parasitologia
19.
Pesqui. vet. bras ; 37(8): 797-801, Aug. 2017. tab
Artigo em Português | VETINDEX | ID: vti-23566

Resumo

Foi realizado um levantamento das doenças parasitárias de bovinos e ovinos diagnosticadas na região sul do Rio Grande do Sul, de janeiro de 1978 a dezembro de 2014 no Laboratório Regional de Diagnóstico da Universidade Federal de Pelotas. Em bovinos 10,1% de todos os diagnosticos tratavam-se de parasitoses, das quais a mais frequente foi a tristeza parasitária bovina, com 55,1% dos surtos. As parasitoses gastrintestinais mistas foram diagnosticadas em 22,35% dos casos, a hemoncose em 4,36%, a dictiocaulose em 3,52%, a fasciolose em 2,68% e a eimeriose em 1,84%. Em ovinos 33,6% dos diagnósticos realizados eram parasitoses, sendo as mais frequentes as parasitoses gastrintestinais mistas (42,7%), a hemoncose (35,4%), a coenurose (9,1%) e a fasciolose (4,4%). Estima-se que as perdas somente por mortalidade, decorrentes de doenças parasitárias em bovinos somam aproximadamente R$16.968.000/ano. Na espécie ovina as perdas econômicas causadas por mortalidade de origem parasitária são de aproximadamente R$2.016.000/ano na região sul do Rio Grande do Sul. Foi possível concluir que, em bovinos, na região sul do Rio Grande do Sul, os agentes da TPB são os principais causadores de perdas econômicas, seguidos pelas parasitoses mistas. Em ovinos a parasitose gastrintestinal mista e a hemoncose, juntas, representam mais de 70% dos diagnósticos realizados.(AU)


A survey of parasitic diseases of cattle and sheep diagnosed in Southern Brazil, from January 1978 to December 2014, was conducted in the Laboratório Regional de Diagnóstico, of Universidade Federal de Pelotas. In cattle 10.1% of all cases diagnosed were parasitic diseases, of which the most common was tick fever with 55.1% of cases. Mixed gastrintestinal parasitosis was diagnosed in 22.35% of cases, hemonchosis in 4.36%, dyctiocaulosis in 3.52%, fluke infection in 2.68%, and eimeriosis in 1.84% of the cases. In sheep 33.6% of the diagnoses was parasitosis. In sheep mixed gastrintestinal parasitosis was the most frequent with 42.7% of the cases, hemonchosis was observed in 35.4%, coenurosis in 9.1% and fluke infection in 4.4% of the cases. It is estimated that losses through mortality resulting from parasitic diseases in cattle is approximately R$16.968.000/year. In sheep the economic losses through mortality caused by parasites is about R$2.016.000/year. The results of this survey realize the importance of parasitic diseases in ruminants in Southern Brazil, based on data from more than three decades of diagnostic. It was concluded that, in cattle in southern Rio Grande do Sul, the TPB agents are the main cause of economic losses, followed by mixed parasitic infections. In sheep mixed gastrointestinal parasitosis and hemoncose together represent more than 70% of the diagnoses performed.(AU)


Assuntos
Animais , Bovinos , Doenças Parasitárias em Animais/economia , Doenças Parasitárias em Animais/epidemiologia , Ovinos/parasitologia , Gastroenteropatias/parasitologia , Brasil/epidemiologia
20.
Pesqui. vet. bras ; 37(8)2017.
Artigo em Português | VETINDEX | ID: vti-743680

Resumo

ABSTRACT: A survey of parasitic diseases of cattle and sheep diagnosed in Southern Brazil, from January 1978 to December 2014, was conducted in the Laboratório Regional de Diagnóstico, of Universidade Federal de Pelotas. In cattle 10.1% of all cases diagnosed were parasitic diseases, of which the most common was tick fever with 55.1% of cases. Mixed gastrintestinal parasitosis was diagnosed in 22.35% of cases, hemonchosis in 4.36%, dyctiocaulosis in 3.52%, fluke infection in 2.68%, and eimeriosis in 1.84% of the cases. In sheep 33.6% of the diagnoses was parasitosis. In sheep mixed gastrintestinal parasitosis was the most frequent with 42.7% of the cases, hemonchosis was observed in 35.4%, coenurosis in 9.1% and fluke infection in 4.4% of the cases. It is estimated that losses through mortality resulting from parasitic diseases in cattle is approximately R$16.968.000/year. In sheep the economic losses through mortality caused by parasites is about R$2.016.000/year. The results of this survey realize the importance of parasitic diseases in ruminants in Southern Brazil, based on data from more than three decades of diagnostic. It was concluded that, in cattle in southern Rio Grande do Sul, the TPB agents are the main cause of economic losses, followed by mixed parasitic infections. In sheep mixed gastrointestinal parasitosis and hemoncose together represent more than 70% of the diagnoses performed.


RESUMO: Foi realizado um levantamento das doenças parasitárias de bovinos e ovinos diagnosticadas na região sul do Rio Grande do Sul, de janeiro de 1978 a dezembro de 2014 no Laboratório Regional de Diagnóstico da Universidade Federal de Pelotas. Em bovinos 10,1% de todos os diagnosticos tratavam-se de parasitoses, das quais a mais frequente foi a tristeza parasitária bovina, com 55,1% dos surtos. As parasitoses gastrintestinais mistas foram diagnosticadas em 22,35% dos casos, a hemoncose em 4,36%, a dictiocaulose em 3,52%, a fasciolose em 2,68% e a eimeriose em 1,84%. Em ovinos 33,6% dos diagnósticos realizados eram parasitoses, sendo as mais frequentes as parasitoses gastrintestinais mistas (42,7%), a hemoncose (35,4%), a coenurose (9,1%) e a fasciolose (4,4%). Estima-se que as perdas somente por mortalidade, decorrentes de doenças parasitárias em bovinos somam aproximadamente R$16.968.000/ano. Na espécie ovina as perdas econômicas causadas por mortalidade de origem parasitária são de aproximadamente R$2.016.000/ano na região sul do Rio Grande do Sul. Foi possível concluir que, em bovinos, na região sul do Rio Grande do Sul, os agentes da TPB são os principais causadores de perdas econômicas, seguidos pelas parasitoses mistas. Em ovinos a parasitose gastrintestinal mista e a hemoncose, juntas, representam mais de 70% dos diagnósticos realizados.

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