Tumor carcinoide na vesícula biliar em cão / Carcinoid gallbladder tumor in a dog

Carcinoid is a neoplasia that arises from dispersed cells of the neuroendocrine system. This tumor is uncommon in animals, and its occurrence in the gallbladder is rare. A male Basset Hound dog's corpse was taken to the Univerdade Federal de Minas Gerais to be analyzed by the Veterinary Pathology sector, without a description of its previous history. Necropsy revealed the presence of pale oral, ocular and penile mucous membranes. The gallbladder had a thickened wall and a dilated lumen, which was filled with dark and lumpy bile. Its mucosa had a whitish-red nodule, with solid and friable areas. Microscopically, there was a focal neoplastic proliferation, which wasn't encapsulated and had imprecise limits, which cells were distributed in a solid pattern and separated by a delicate fibrovascular stroma. The neoplastic cells presented oval or round shaped nucleus, which had a chromatin predominantly loose, and one or two nucleoli. Their cytoplasm was moderately abundant, and in most of the cells it was eosinophilic, granular, and had well-defined limits. Using the Grimelius coloration, neoplastic cells' cytoplasmic granules stained brownish or black, confirming the neuroendocrine origin of the neoplasia. Based on the macroscopic and microscopic findings, the diagnosis of a gallbladder carcinoid was established.(AU)

Tumor carcinoide na vesícula biliar em cão / Carcinoid gallbladder tumor in a dog

Carcinoid is a neoplasia that arises from dispersed cells of the neuroendocrine system. This tumor is uncommon in animals, and its occurrence in the gallbladder is rare. A male Basset Hound dog's corpse was taken to the Univerdade Federal de Minas Gerais to be analyzed by the Veterinary Pathology sector, without a description of its previous history. Necropsy revealed the presence of pale oral, ocular and penile mucous membranes. The gallbladder had a thickened wall and a dilated lumen, which was filled with dark and lumpy bile. Its mucosa had a whitish-red nodule, with solid and friable areas. Microscopically, there was a focal neoplastic proliferation, which wasn't encapsulated and had imprecise limits, which cells were distributed in a solid pattern and separated by a delicate fibrovascular stroma. The neoplastic cells presented oval or round shaped nucleus, which had a chromatin predominantly loose, and one or two nucleoli. Their cytoplasm was moderately abundant, and in most of the cells it was eosinophilic, granular, and had well-defined limits. Using the Grimelius coloration, neoplastic cells' cytoplasmic granules stained brownish or black, confirming the neuroendocrine origin of the neoplasia. Based on the macroscopic and microscopic findings, the diagnosis of a gallbladder carcinoid was established.(AU)

Primary gallbladder adenocarcinoma in a cat

Background: Biliary tumors have low incidence in cats and are more common in elderly animals. Hepatobiliary tumors have different classifications and their etiology is difficult to interpret. In most cases, the diagnosis is only possible in advanced stages, which clouds the precursor factors. The late diagnosis is explained by the absence or specificity of clinical manifestations and laboratory changes. The majority of hepatobiliary neoplasms in cats are incidental findings in surgeries or necropsies. This study aimed to report clinical, laboratory, pathological and immunohistochemical results in a feline case of gallbladder adenocarcinoma. Case: 4-year-old male castrated mix breed cat was admitted at a veterinary clinic with a history of polyuria / polydipsia, anorexia, apathy, jaundice and emesis for 60 days. The animal had been treated in another clinic with silymarin, famotidine and cyanocobalamin, and fed by esophageal tube based on the presumptive clinical diagnosis of cholangitis. The clinical examination revealed jaundice, abdominal pain, weight loss, enlargement of the liver and gallbladder and the presence of a structure in the epigastric region. Based on clinical signs, blood tests (complete blood count and liver enzymes), abdominal ultrasound and thoracic radiography were requested. In the exam results, eosinophilia, bilirubinemia and increased alkaline phosphatase, glutamic pyruvic transaminase and gamma glutamyl transferase were observed, in addition to the presence of icteric and hemolyzed serum. Ultrasound exam revealed thickened and dilated cystic and common ducts, large and thick gallbladder, bile with bile mud, hypoechogenic liver, thickening in the duodenal papilla and enlarged pancreatic and duodenal lymph nodes. There were no alterations in thoracic radiography. Based on the findings, the diagnosis of...

Primary gallbladder adenocarcinoma in a cat

Background: Biliary tumors have low incidence in cats and are more common in elderly animals. Hepatobiliary tumors have different classifications and their etiology is difficult to interpret. In most cases, the diagnosis is only possible in advanced stages, which clouds the precursor factors. The late diagnosis is explained by the absence or specificity of clinical manifestations and laboratory changes. The majority of hepatobiliary neoplasms in cats are incidental findings in surgeries or necropsies. This study aimed to report clinical, laboratory, pathological and immunohistochemical results in a feline case of gallbladder adenocarcinoma. Case: 4-year-old male castrated mix breed cat was admitted at a veterinary clinic with a history of polyuria / polydipsia, anorexia, apathy, jaundice and emesis for 60 days. The animal had been treated in another clinic with silymarin, famotidine and cyanocobalamin, and fed by esophageal tube based on the presumptive clinical diagnosis of cholangitis. The clinical examination revealed jaundice, abdominal pain, weight loss, enlargement of the liver and gallbladder and the presence of a structure in the epigastric region. Based on clinical signs, blood tests (complete blood count and liver enzymes), abdominal ultrasound and thoracic radiography were requested. In the exam results, eosinophilia, bilirubinemia and increased alkaline phosphatase, glutamic pyruvic transaminase and gamma glutamyl transferase were observed, in addition to the presence of icteric and hemolyzed serum. Ultrasound exam revealed thickened and dilated cystic and common ducts, large and thick gallbladder, bile with bile mud, hypoechogenic liver, thickening in the duodenal papilla and enlarged pancreatic and duodenal lymph nodes. There were no alterations in thoracic radiography. Based on the findings, the diagnosis of...(AU)

Carcinoid of the gallbladder in two dogs / Carcinoide de vesícula biliar em dois cães

A carcinoid is a rare neoplasm derived from neuroendocrine cells that may arise in the hepatobiliary system. This report described two cases of carcinoid of the gallbladder in dogs, with emphasis on the clinical, pathological and immunohistochemical aspects. Case 1 was a 10-year-old female Shih Tzu, with a history of prostration and occasional episodes of diarrhea and vomiting. Case 2 was a 10-year-old male Cocker Spaniel, with a history of diarrhea and abdominal pain. Abdominal ultrasonography suggested a neoplasm of the gallbladder in both cases. The dogs underwent cholecystectomy, and 10% formalin-fixed samples were sent for pathological examination. Histologically, a neoplastic proliferation of neuroendocrine cells was observed in the gallbladder submucosa of both cases. Immunohistochemical labeling for neuroendocrine antibodies, such as synaptophysin, neuron-specific enolase and chromogranin A, confirmed the diagnoses. Carcinoid of the gallbladder is a rare neoplasm in dogs, without specific clinical signs, but should be included in the differential diagnosis of lesions that affect this organ.(AU)

Carcinoide é um neoplasma raro derivado de células neuroendócrinas, que pode surgir no sistema hepatobiliar. Este relato descreve dois casos de carcinoide da vesícula biliar em cães, com ênfase nos aspectos clínicos, patológicos e imuno-histoquímicos. O caso 1 era uma fêmea, Shih Tzu de 10 anos de idade, com histórico de letargia e ocasionais episódios de diarreia e vômito. O caso 2 era um macho, Cocker Spaniel de 10 anos, que apresentava diarreia e dor abdominal. Através da ultrassonografia abdominal foi sugerida neoplasia na vesícula biliar em ambos os casos. Os caninos foram submetidos à colecistectomia e amostras em formol a 10%, seguidamente, foram enviadas para o laboratório de patologia. Histologicamente, observou-se proliferação neoplásica de células neuroendócrinas na submucosa da vesícula biliar nos dois casos. A marcação imuno-histoquímica para os anticorpos neuroendócrinos, como sinaptofisina, enolase específica de neurônios e cromogranina A confirmou o diagnóstico. Carcinoide de vesícula biliar é uma neoplasia rara em cães, sem sinais clínicos específicos, mas deve ser incluída no diagnóstico diferencial das lesões que afetam esse órgão.(AU)

A practical new strategy to prevent bile duct injury during laparoscopic cholecystectomy. A single-center experience with 5539 cases

Purpose Bile duct injury (BDI) is a catastrophic complication of cholecystectomy, and misidentification of the cystic anatomy is considered to be the main cause. Although several techniques have been developed to prevent BDI, such as the critical view of safety, the infundibular technique, the rates remain higher during laparoscopic cholecystectomy (LC) than during open surgery. We, here, propose a practical new strategy for ductal identification, that can help to prevent laparoscopic bile duct injury. Methods A retrospective study of 5539 patients who underwent LC from March 2007 to February 2019 at a single institution was conducted. The gallbladder infundibulum was classified by its position located on an imaginary clock with the gallbladder neck as the center point of the dial, 3-oclock position as cranial, 6-oclock as dorsal, 9-oclock as caudal, and 12-oclock as ventral, as well as the axial position. Patient demographics, pathologic variables and infundibulum classification were evaluated. Detailed analysis of ductal identification based on gallbladder infundibulum position was performed in this study. All infundibulum positions were recorded by intraoperative laparoscopic video or photographic images. Results All the patients successfully underwent LC during the study period. No conversion or serious complications such as biliary injury occurred. Gallbladders with infundibulum of 3-oclock position, 6-oclock position, 9-oclock position, 12-oclock position, axial position were 12.3%, 23.4%, 28.0%, 4.2%, and 32.1%, respectively. The 3-oclock and 12-oclock position were pitfalls that might cause biliary injury. Conclusion The gallbladder infundibulum as a navigator is useful for ductal identification to reduce BDI and improve the safety of LC.(AU)

A practical new strategy to prevent bile duct injury during laparoscopic cholecystectomy. A single-center experience with 5539 cases

Purpose; Bile duct injury (BDI) is a catastrophic complication of cholecystectomy, and misidentification of the cystic anatomy is considered to be the main cause. Although several techniques have been developed to prevent BDI, such as the “critical view of safety”, the infundibular technique, the rates remain higher during laparoscopic cholecystectomy (LC) than during open surgery. We, here, propose a practical new strategy for ductal identification, that can help to prevent laparoscopic bile duct injury.; Methods; A retrospective study of 5539 patients who underwent LC from March 2007 to February 2019 at a single institution was conducted. The gallbladder infundibulum was classified by its position located on an imaginary clock with the gallbladder neck as the center point of the dial, 3-oclock position as cranial, 6-oclock as dorsal, 9-oclock as caudal, and 12-oclock as ventral, as well as the axial position. Patient demographics, pathologic variables and infundibulum classification were evaluated. Detailed analysis of ductal identification based on gallbladder infundibulum position was performed in this study. All infundibulum positions were recorded by intraoperative laparoscopic video or photographic images.; Results; All the patients successfully underwent LC during the study period. No conversion or serious complications such as biliary injury occurred. Gallbladders with infundibulum of 3-oclock position, 6-oclock position, 9-oclock position, 12-oclock position, axial position were 12.3%, 23.4%, 28.0%, 4.2%, and 32.1%, respectively. The 3-oclock and 12-oclock position were pitfalls that might cause biliary injury.; Conclusion; The gallbladder infundibulum as a navigator is useful for ductal identification to reduce BDI and improve the safety of LC.(AU)

Não constituintes da carcaça de cordeiros em distintas condições sexuais / Non-constituents of the carcass of lambs on different sexual conditions

O estudo foi realizado com objetivo de avaliar os efeitos da condição sexual nos pesos e rendimentos dos não constituintes da carcaça de cordeiros cruza Texel x Corriedale. Foram utilizados 46 machos divididos em três grupos: não castrados (n=15), castrados (n=17) e induzidos ao criptorquidismo (n=14). Foi adotado o delineamento experimental inteiramente casualizado com três tratamentos e número variável de repetições. Foi realizada análise de variância para avaliar o efeito da condição sexual sobre as características estudadas. Cordeiros castrados atingiram as condições estipuladas para o abate mais precocemente. Não castrados e induzidos ao criptorquidismo apresentaram pesos superiores de cabeça (kg), pele (kg), pênis (kg) e fígado com vesícula (kg). Não castrados apresentaram valores Como citar - disponível no site, superiores do conjunto pulmões com traqueia (kg) em relação na página do artigo. a animais castrados. Conclui-se que cordeiros não castrados e induzidos ao criptorquidismo apresentam pesos superiores de alguns componentes corporais quando terminados em campo nativo recebendo suplementação de 1% do peso corporal. Proporcionalmente, a condição sexual não interfere nos rendimentos dos componentes corporais de cordeiros Texel x Corriedale.

The study was carried out with objective to evaluate the effects of sexual condition on the weights and yields of nonconstituents of the carcass of Texel x Corriedale lambs. Forty-six males were used divided in three groups: uncastrated (n = 15), castrated (n = 17) and induced to cryptorchidism (n = 14). A completely randomized design with three treatments and variable number of repetitions was adopted, an analysis of variance was performed to evaluate the effect of sexual condition on the characteristics studied. Castrated lambs have reached the stipulated conditions for slaughter earlier. Uncastrated and induced to cryptorchidism presented higher weights of head (kg), skin (kg), penis (kg) and liver with gall bladder (kg). Uncastrated lambs presented higher values for lungs with trachea (kg) compared to castrated animals. It is concluded that uncastrated and induced to cryptorchidism lambs present higher weights of some body components when finished in native field receiving supplementation of 1% of body weight. Proportionally, the sexual condition does not interfere in the yields of the body components of Texel x Corriedale lambs.

Não constituintes da carcaça de cordeiros em distintas condições sexuais / Non-constituents of the carcass of lambs on different sexual conditions

O estudo foi realizado com objetivo de avaliar os efeitos da condição sexual nos pesos e rendimentos dos não constituintes da carcaça de cordeiros cruza Texel x Corriedale. Foram utilizados 46 machos divididos em três grupos: não castrados (n=15), castrados (n=17) e induzidos ao criptorquidismo (n=14). Foi adotado o delineamento experimental inteiramente casualizado com três tratamentos e número variável de repetições. Foi realizada análise de variância para avaliar o efeito da condição sexual sobre as características estudadas. Cordeiros castrados atingiram as condições estipuladas para o abate mais precocemente. Não castrados e induzidos ao criptorquidismo apresentaram pesos superiores de cabeça (kg), pele (kg), pênis (kg) e fígado com vesícula (kg). Não castrados apresentaram valores Como citar - disponível no site, superiores do conjunto pulmões com traqueia (kg) em relação na página do artigo. a animais castrados. Conclui-se que cordeiros não castrados e induzidos ao criptorquidismo apresentam pesos superiores de alguns componentes corporais quando terminados em campo nativo recebendo suplementação de 1% do peso corporal. Proporcionalmente, a condição sexual não interfere nos rendimentos dos componentes corporais de cordeiros Texel x Corriedale.(AU)

The study was carried out with objective to evaluate the effects of sexual condition on the weights and yields of nonconstituents of the carcass of Texel x Corriedale lambs. Forty-six males were used divided in three groups: uncastrated (n = 15), castrated (n = 17) and induced to cryptorchidism (n = 14). A completely randomized design with three treatments and variable number of repetitions was adopted, an analysis of variance was performed to evaluate the effect of sexual condition on the characteristics studied. Castrated lambs have reached the stipulated conditions for slaughter earlier. Uncastrated and induced to cryptorchidism presented higher weights of head (kg), skin (kg), penis (kg) and liver with gall bladder (kg). Uncastrated lambs presented higher values for lungs with trachea (kg) compared to castrated animals. It is concluded that uncastrated and induced to cryptorchidism lambs present higher weights of some body components when finished in native field receiving supplementation of 1% of body weight. Proportionally, the sexual condition does not interfere in the yields of the body components of Texel x Corriedale lambs.(AU)

Diagnóstico e tratamento de mucocele da vesícula biliar em cão / Diagnosis and treatment of gall bladder mucocele in dog

A mucocele de vesícula biliar se caracteriza pelo acúmulo anormal de bile semissólida na vesícula biliar. O presente trabalho relata o caso de uma cadela idosa, da raça yorkshire atendida em um Hospital Veterinário particular (Serviço Médico Veterinário – SEMEVE), com quadro de vômitos, anorexia, prostração e tremores, iniciados no dia do atendimento. Durante a anamnese, a tutora relatou que a paciente tinha sido diagnosticada há três anos com dislipidemia, sendo descartadas afecções endócrinas como causa do quadro. Ao exame físico, o animal apresentava sensibilidade à palpação abdominal e discreta icterícia em esclera. Durante o ultrassom de abdômen foi diagnosticada a mucocele de vesícula biliar, através da ecogenicidade, padrão apresentado pela bile e histórico clínico do animal. O tratamento inicial foi com antibioticoterapia, fluidoterapia suplementada com vitamina b e potássio, analgésico, antiemético e protetor gástrico. Devido a piora do quadro apresentada nos exames, 48 horas após o internamento, foi realizada colecistectomia. No transcirúrgico identificou-se aderência do omento à vesícula biliar e líquido ao redor dela. Foi realizada cultura com antibiograma da bile e mantida a terapia alopática. O histopatológico da vesícula biliar apontou colecistite aguda supurada. A cultura isolou a bactéria Sthapylococcus intermedius. Após 60 dias de realizada a cirurgia, o animal encontrava-se clinicamente saudável e como os exames para controle apontaram resolução completa das alterações, foi dada alta médica.

The gallbladder mucocele (GBM) is characterized by abnormal accumulation of semisolid bile in the gallbladder. This case repor is about a female dog, Yorkshire, attended on a private Veterinary Hospital (Serviço Médico Veterinário – SEMEVE). The dog had vomiting, anorexia, prostration and tremors that started on the day of the appointment. During the anamnesis, the tutor reported that the patient had been diagnosed with dyslipidemia three years before, however, endocrine disorders were ruled out as the cause of the condition. At the physical examination, the animal presented sensitivity to abdominal palpation and mild sclera jaundice. During the abdominal ultrasound it was diagnosed gallbladder mucocele, through echogenicity and the pattern presented by the bile associated with the clinical history of the animal. The initial treatment was with antibiotic therapy, fluid therapy supplemented with vitamin B and potassium, analgesic, antiemetic and gastric protector. Due to the worsening of the dog seen in the exams, 48 hours after admission, cholecystectomy was performed. In the transurgical procedure, omentum adherence to the gallbladder and fluid around it was identified. Culture with bile antibiogram was performed and allopathic therapy was maintained. The histopathology of the gallbladder showed acute suppurated cholecystitis. The culture isolated the bacterium Sthapylococcus intermedius. After 60 days of the surgery, the animal was clinically healthy and the tests for control showed complete resolution of the changes, so it was given medical discharge.

Diagnóstico e tratamento de mucocele da vesícula biliar em cão / Diagnosis and treatment of gall bladder mucocele in dog

A mucocele de vesícula biliar se caracteriza pelo acúmulo anormal de bile semissólida na vesícula biliar. O presente trabalho relata o caso de uma cadela idosa, da raça yorkshire atendida em um Hospital Veterinário particular (Serviço Médico Veterinário SEMEVE), com quadro de vômitos, anorexia, prostração e tremores, iniciados no dia do atendimento. Durante a anamnese, a tutora relatou que a paciente tinha sido diagnosticada há três anos com dislipidemia, sendo descartadas afecções endócrinas como causa do quadro. Ao exame físico, o animal apresentava sensibilidade à palpação abdominal e discreta icterícia em esclera. Durante o ultrassom de abdômen foi diagnosticada a mucocele de vesícula biliar, através da ecogenicidade, padrão apresentado pela bile e histórico clínico do animal. O tratamento inicial foi com antibioticoterapia, fluidoterapia suplementada com vitamina b e potássio, analgésico, antiemético e protetor gástrico. Devido a piora do quadro apresentada nos exames, 48 horas após o internamento, foi realizada colecistectomia. No transcirúrgico identificou-se aderência do omento à vesícula biliar e líquido ao redor dela. Foi realizada cultura com antibiograma da bile e mantida a terapia alopática. O histopatológico da vesícula biliar apontou colecistite aguda supurada. A cultura isolou a bactéria Sthapylococcus intermedius. Após 60 dias de realizada a cirurgia, o animal encontrava-se clinicamente saudável e como os exames para controle apontaram resolução completa das alterações, foi dada alta médica.(AU)

The gallbladder mucocele (GBM) is characterized by abnormal accumulation of semisolid bile in the gallbladder. This case repor is about a female dog, Yorkshire, attended on a private Veterinary Hospital (Serviço Médico Veterinário SEMEVE). The dog had vomiting, anorexia, prostration and tremors that started on the day of the appointment. During the anamnesis, the tutor reported that the patient had been diagnosed with dyslipidemia three years before, however, endocrine disorders were ruled out as the cause of the condition. At the physical examination, the animal presented sensitivity to abdominal palpation and mild sclera jaundice. During the abdominal ultrasound it was diagnosed gallbladder mucocele, through echogenicity and the pattern presented by the bile associated with the clinical history of the animal. The initial treatment was with antibiotic therapy, fluid therapy supplemented with vitamin B and potassium, analgesic, antiemetic and gastric protector. Due to the worsening of the dog seen in the exams, 48 hours after admission, cholecystectomy was performed. In the transurgical procedure, omentum adherence to the gallbladder and fluid around it was identified. Culture with bile antibiogram was performed and allopathic therapy was maintained. The histopathology of the gallbladder showed acute suppurated cholecystitis. The culture isolated the bacterium Sthapylococcus intermedius. After 60 days of the surgery, the animal was clinically healthy and the tests for control showed complete resolution of the changes, so it was given medical discharge.(AU)

Avaliação ultrassonográfica de estruturas reprodutivas, fígado e vesícula biliar de Boa constrictor (Linnaeus, 1758) ex situ / Ultrasonographic evaluation of the reproductive structures, liver and gallbladder of Boa constrictor (Linnaeus, 1758) ex situ / Evaluación ecográfica de las estructuras reproductivas, hígado y vesícula biliar de Boa constrictor (Linnaeus, 1758) ex situ

A ultrassonografia possibilita avaliações que resultam em informações relevantes para a manutenção das espécies em cativeiro. Desse modo, realizou-se um estudo com 15 exemplares de Boa constrictor, de ambos os sexos, a fim de caracterizar a aparência ultrassonográfica das estruturas reprodutivas, fígado e vesícula biliar desses animais, pela técnica da janela lateral. Além disso, avaliou-se a influência dos fatores intervalo entre alimentações e o tamanho dos indivíduos na caracterização ultrassonográfica das estruturas. Folículos pré-vitelogênicos foram caracterizados por formato arredondado, preenchidos basicamente por conteúdo anecoico e com ecotextura homogênea e grosseira e folículos vitelogênicos apresentaram conteúdo anecogênico e hipoecogênico, ambos com margens finas e regulares. Os testículos foram caracterizados por formato alongado, parênquima com média ecogenicidade, margens regulares e ecotextura homogênea. O fígado apresentou formato alongado, parênquima com ecogenicidade mista (hipoecoico a levemente hiperecoico), margens ecogênicas, ecotextura homogênea e tamanho médio de 27,6 cm. A vesícula biliar apresentou formato arredondado, preenchida por conteúdo anecoico, envolvida por uma margem fina hiperecogênica. Dos fatores avaliados, o intervalo entre alimentações foi o que mais influenciou na caracterização ultrassonográfica das estruturas. O tamanho das serpentes não exerceu nenhuma influência. Foi possível concluir que o ultrassom, por meio da técnica da janela lateral, é eficaz na avaliação dos órgãos estudados.

The ultrasonography enables assessments which result in relevant information for the maintenance of the species in captivity. Thus, we conducted a study with 15 specimens of Boa constrictor of both sexes, in order to characterize the ultrasonographic appearance, of reproductive structures, liver and gall bladder of these animals, through the side window technique. Besides that, we evaluate the influence of the factors fasting interval and size of the individual in the ultrasonographic characterization of structures. Pre-vitellogenic follicles were characterized by rounded shape, filled primarily by anechoic content and homogeneous and coarse echotexture and vitellogenic follicles showed anechogenic and hypoechoic content, both with fine and regular margins. Testes were characterized by elongated shape, parenchymal with echogenicity mean, regular margins and homogeneous echotexture. The liver showed elongated shape, parenchyma with mixed echogenicity (hypoechoic to hyperechoic), echogenic margins, homogeneous echotexture and average size of 27,6 cm. The gallbladder showed rounded shape, filled with anechoic content, surrounded by a thin hyperechoic margin. Of the factors evaluated, fasting interval was the one that interfered the most in the ultrasonographic characterization of the organs. The size of the snakes did not exert any influence. It was concluded that ultrasound, through the side window technique, is effective in the evaluation of the organs studied.

La ecografía permite evaluaciones que resultan en informaciones relevantes para el mantenimiento de las especies en cautiverio. Siendo así, este estudio se realizó con 15 individuos de Boa constrictor, de ambos los géneros, con el objetivo de caracterizar la apariencia ecográfica de los órganos reprodutivos, hígado y vesicula biliar de los animales, por la tecnica de ventana lateral. Además, se evaluó la influencia de los factores como intervalo entre una alimentación y otra y el tamaño de los individuos en la caracterización ecográfica de los órganos. Foliculos vitelogénicos primordiales se caracterizarón por el formato redondeado, rellenos con contenido anecoico y ecotextura homogénea y grosera y foliculos vitelogénicos presentaron contenido anecogénico y hipoecoico, ambos con márgenes refinadas y regulares. Los testículos se caracterizáron por la forma alargada, parénquima ecogénico, margenes regulares y ecotextura homogénea. El hígado se mostró alargado, com ecogenicidad de parénquima mixta (entre hipoecoico a ligeramente hiperecoico), con márgenes ecogénicas, ecotextura homogénea y tamaño promedio de 27,6 cm. La vesicula biliar se mostró con forma redondeada, rellena por contenido anecoico, envolvida por una margen delgada hiperecoica. Entre los factores evaluados, el espacio entre una alimentación y otra se mostró mas influente en la caracterización ecográfica de las estruturas. El tamaño de las serpientes no ejerció ninguna influencia. Así, se concluyó que la ultrasonografía a través de la ventana lateral es eficaz en la evaluación de los órganos analizados.

Avaliação ultrassonográfica de estruturas reprodutivas, fígado e vesícula biliar de Boa constrictor (Linnaeus, 1758) ex situ / Ultrasonographic evaluation of the reproductive structures, liver and gallbladder of Boa constrictor (Linnaeus, 1758) ex situ / Evaluación ecográfica de las estructuras reproductivas, hígado y vesícula biliar de Boa constrictor (Linnaeus, 1758) ex situ

A ultrassonografia possibilita avaliações que resultam em informações relevantes para a manutenção das espécies em cativeiro. Desse modo, realizou-se um estudo com 15 exemplares de Boa constrictor, de ambos os sexos, a fim de caracterizar a aparência ultrassonográfica das estruturas reprodutivas, fígado e vesícula biliar desses animais, pela técnica da janela lateral. Além disso, avaliou-se a influência dos fatores intervalo entre alimentações e o tamanho dos indivíduos na caracterização ultrassonográfica das estruturas. Folículos pré-vitelogênicos foram caracterizados por formato arredondado, preenchidos basicamente por conteúdo anecoico e com ecotextura homogênea e grosseira e folículos vitelogênicos apresentaram conteúdo anecogênico e hipoecogênico, ambos com margens finas e regulares. Os testículos foram caracterizados por formato alongado, parênquima com média ecogenicidade, margens regulares e ecotextura homogênea. O fígado apresentou formato alongado, parênquima com ecogenicidade mista (hipoecoico a levemente hiperecoico), margens ecogênicas, ecotextura homogênea e tamanho médio de 27,6 cm. A vesícula biliar apresentou formato arredondado, preenchida por conteúdo anecoico, envolvida por uma margem fina hiperecogênica. Dos fatores avaliados, o intervalo entre alimentações foi o que mais influenciou na caracterização ultrassonográfica das estruturas. O tamanho das serpentes não exerceu nenhuma influência. Foi possível concluir que o ultrassom, por meio da técnica da janela lateral, é eficaz na avaliação dos órgãos estudados.(AU)

The ultrasonography enables assessments which result in relevant information for the maintenance of the species in captivity. Thus, we conducted a study with 15 specimens of Boa constrictor of both sexes, in order to characterize the ultrasonographic appearance, of reproductive structures, liver and gall bladder of these animals, through the side window technique. Besides that, we evaluate the influence of the factors fasting interval and size of the individual in the ultrasonographic characterization of structures. Pre-vitellogenic follicles were characterized by rounded shape, filled primarily by anechoic content and homogeneous and coarse echotexture and vitellogenic follicles showed anechogenic and hypoechoic content, both with fine and regular margins. Testes were characterized by elongated shape, parenchymal with echogenicity mean, regular margins and homogeneous echotexture. The liver showed elongated shape, parenchyma with mixed echogenicity (hypoechoic to hyperechoic), echogenic margins, homogeneous echotexture and average size of 27,6 cm. The gallbladder showed rounded shape, filled with anechoic content, surrounded by a thin hyperechoic margin. Of the factors evaluated, fasting interval was the one that interfered the most in the ultrasonographic characterization of the organs. The size of the snakes did not exert any influence. It was concluded that ultrasound, through the side window technique, is effective in the evaluation of the organs studied.(AU)

La ecografía permite evaluaciones que resultan en informaciones relevantes para el mantenimiento de las especies en cautiverio. Siendo así, este estudio se realizó con 15 individuos de Boa constrictor, de ambos los géneros, con el objetivo de caracterizar la apariencia ecográfica de los órganos reprodutivos, hígado y vesicula biliar de los animales, por la tecnica de ventana lateral. Además, se evaluó la influencia de los factores como intervalo entre una alimentación y otra y el tamaño de los individuos en la caracterización ecográfica de los órganos. Foliculos vitelogénicos primordiales se caracterizarón por el formato redondeado, rellenos con contenido anecoico y ecotextura homogénea y grosera y foliculos vitelogénicos presentaron contenido anecogénico y hipoecoico, ambos con márgenes refinadas y regulares. Los testículos se caracterizáron por la forma alargada, parénquima ecogénico, margenes regulares y ecotextura homogénea. El hígado se mostró alargado, com ecogenicidad de parénquima mixta (entre hipoecoico a ligeramente hiperecoico), con márgenes ecogénicas, ecotextura homogénea y tamaño promedio de 27,6 cm. La vesicula biliar se mostró con forma redondeada, rellena por contenido anecoico, envolvida por una margen delgada hiperecoica. Entre los factores evaluados, el espacio entre una alimentación y otra se mostró mas influente en la caracterización ecográfica de las estruturas. El tamaño de las serpientes no ejerció ninguna influencia. Así, se concluyó que la ultrasonografía a través de la ventana lateral es eficaz en la evaluación de los órganos analizados.(AU)

Descriptive Anatomy of Hepatic and Portal Veins with Special Reference to Biliary Duct System in Broiler Chickens (Gallus gallus domesticus): A Recent Illustration

Chickens have a great participation in meat and egg production. The anatomical scientific data of poultry is important to support the recent researches either for illustrations in academic studies or clinically in diagnosis and treatment of some poultry nutritional diseases. The current investigation was performed on twenty broiler chickens of both sexes. The chickens were anaesthetized, slaughtered then the venous system was flushed with a normal saline to anatomically investigate the distribution of hepatic portal veins both intra and extrahepatic, as well as the hepatic venous and biliary duct systems. The fowl had two hepatic portal veins draining the gastrointestinal tract with its associated organs as spleen and pancreas. The left hepatic portal vein was small, restricted to a limited portion of left hepatic lobe and had been constituted by five main venous tributaries draining the proventriculus, gizzard and pylorus, while the right hepatic portal vein was the largest, receiving the proventriculosplenic, gastropancreaticoduodenal and common mesenteric veins then piercing the right hepatic lobe to be distributed in both hepatic segments through right and left divisions. The fowl has two hepatic portal veins differed in size and distribution. A characteristic imaginary trapezoid shape was formed by some tributaries draining the caudoventral part of the gizzard. There are three ileocecal veins; cranial, caudal and the ileocecal tributary of the cranial mesenteric vein. The wall of gall bladder and the common hepatoenteric duct was characterized by the presence of well-defined longitudinal folds or striations.(AU)

Descriptive Anatomy of Hepatic and Portal Veins with Special Reference to Biliary Duct System in Broiler Chickens (Gallus gallus domesticus): A Recent Illustration

Chickens have a great participation in meat and egg production. The anatomical scientific data of poultry is important to support the recent researches either for illustrations in academic studies or clinically in diagnosis and treatment of some poultry nutritional diseases. The current investigation was performed on twenty broiler chickens of both sexes. The chickens were anaesthetized, slaughtered then the venous system was flushed with a normal saline to anatomically investigate the distribution of hepatic portal veins both intra and extrahepatic, as well as the hepatic venous and biliary duct systems. The fowl had two hepatic portal veins draining the gastrointestinal tract with its associated organs as spleen and pancreas. The left hepatic portal vein was small, restricted to a limited portion of left hepatic lobe and had been constituted by five main venous tributaries draining the proventriculus, gizzard and pylorus, while the right hepatic portal vein was the largest, receiving the proventriculosplenic, gastropancreaticoduodenal and common mesenteric veins then piercing the right hepatic lobe to be distributed in both hepatic segments through right and left divisions. The fowl has two hepatic portal veins differed in size and distribution. A characteristic imaginary trapezoid shape was formed by some tributaries draining the caudoventral part of the gizzard. There are three ileocecal veins; cranial, caudal and the ileocecal tributary of the cranial mesenteric vein. The wall of gall bladder and the common hepatoenteric duct was characterized by the presence of well-defined longitudinal folds or striations.

Colecistectomía asociada a enterotomia duodenal en una infestación por Platynosomum sp. en un gato doméstico / Cholecystectomy associated to duodenal enterotomy in the infestation by Platynosomum sp. in a domestic cat / Colecistectomia associada à enterotomia duodenal na infestação por Platynosomum sp. em um gato doméstico

Platynosomum sp. es el más grande parásito hepatobiliar de la familia Felidae, causador de una lesión obstructiva extrahepática que puede ser tratada por cirugía. Un felino, sin raza definida, dos años de edad, semidomiciliado, fue atendido con un cuadro clínico de apatía, ictericia, deshidratación y elevación de enzimas hepáticas. En la ecografía abdominal se observó el hígado aumentado, vasos hepáticos y la vena porta con un mayor diámetro, la vesícula llena de contenido anecoico, sedimentación, espesamiento y hiperrefringencia de la pared de el conducto biliar principal dilatado con pared gruesa. Fue realizada colecistectomía con enterotomia duodenal. La inspección de los contenidos de la vesícula biliar reveló parásitos con una apariencia aplanada y la evaluación microscópica fue consistente con Platynosomum sp. El tratamiento con niclosamida y oxibendazol fue efectivo. Colecistectomía asociada con enterotomia duodenal es eficaz en tales casos.

Platynosomum sp. is the major hepatobiliary parasite of felids, causing an extra-hepatic obstructive lesion which may be treated by surgery. A two-year old cross-bred feline, semi-domiciled, was attended with a clinical picture of apathy, jaundice, dehydration and increase in hepatic enzymes. In the abdominal ultrasonography the liver was observed enlarged, hepatic and portal veins with increased diameter, gall bladder filled by anechoic content, with sediment, thickening and hyperechogenicity of the wall and a dilated main bile duct with a thickened wall. The cholecystectomy with a duodenal enterotomy was performed. The inspection of the gall bladder’s content revealed parasites with a flattened aspect and the microscopic evaluation was compatible with Platynosomum sp. A treatment with niclosamide and oxibendazole was efficient. Cholecystectomy associated to a duodenal enterotomy is efficient in these cases.

Platynosomum sp. é o maior parasito hepatobiliar de felídeos, causando uma lesão obstrutiva extra-hepática a qual pode ser tratada por cirurgia. Um felino, de dois anos de idade, sem raça definida, semidomiciliado, foi atendido apresentando um quadro clínico de apatia, icterícia, desidratação e aumento de enzimas hepáticas. Na ultrassonografia abdominal o fígado estava aumentado, vasos hepáticos e veia porta com aumento de diâmetro, vesícula biliar preenchida por conteúdo anecoico, com sedimentação, espessamento e hiperecogenicidade da parede e ducto biliar principal dilatado com parede espessada. Realizou-se a colecistectomia com enterotomia duodenal. A inspeção do conteúdo da vesicular biliar revelou parasitos com um aspecto achatado e a avaliação microscópica foi compatível com Platynosomum sp. O tratamento com niclosamida e oxibendazole foi eficiente. Colecistectomia associada à enterotomia duodenal é eficiente nesses casos.

Colecistectomía asociada a enterotomia duodenal en una infestación por Platynosomum sp. en un gato doméstico / Cholecystectomy associated to duodenal enterotomy in the infestation by Platynosomum sp. in a domestic cat / Colecistectomia associada à enterotomia duodenal na infestação por Platynosomum sp. em um gato doméstico

Platynosomum sp. es el más grande parásito hepatobiliar de la familia Felidae, causador de una lesión obstructiva extrahepática que puede ser tratada por cirugía. Un felino, sin raza definida, dos años de edad, semidomiciliado, fue atendido con un cuadro clínico de apatía, ictericia, deshidratación y elevación de enzimas hepáticas. En la ecografía abdominal se observó el hígado aumentado, vasos hepáticos y la vena porta con un mayor diámetro, la vesícula llena de contenido anecoico, sedimentación, espesamiento y hiperrefringencia de la pared de el conducto biliar principal dilatado con pared gruesa. Fue realizada colecistectomía con enterotomia duodenal. La inspección de los contenidos de la vesícula biliar reveló parásitos con una apariencia aplanada y la evaluación microscópica fue consistente con Platynosomum sp. El tratamiento con niclosamida y oxibendazol fue efectivo. Colecistectomía asociada con enterotomia duodenal es eficaz en tales casos.(AU)

Platynosomum sp. is the major hepatobiliary parasite of felids, causing an extra-hepatic obstructive lesion which may be treated by surgery. A two-year old cross-bred feline, semi-domiciled, was attended with a clinical picture of apathy, jaundice, dehydration and increase in hepatic enzymes. In the abdominal ultrasonography the liver was observed enlarged, hepatic and portal veins with increased diameter, gall bladder filled by anechoic content, with sediment, thickening and hyperechogenicity of the wall and a dilated main bile duct with a thickened wall. The cholecystectomy with a duodenal enterotomy was performed. The inspection of the gall bladders content revealed parasites with a flattened aspect and the microscopic evaluation was compatible with Platynosomum sp. A treatment with niclosamide and oxibendazole was efficient. Cholecystectomy associated to a duodenal enterotomy is efficient in these cases.(AU)

Platynosomum sp. é o maior parasito hepatobiliar de felídeos, causando uma lesão obstrutiva extra-hepática a qual pode ser tratada por cirurgia. Um felino, de dois anos de idade, sem raça definida, semidomiciliado, foi atendido apresentando um quadro clínico de apatia, icterícia, desidratação e aumento de enzimas hepáticas. Na ultrassonografia abdominal o fígado estava aumentado, vasos hepáticos e veia porta com aumento de diâmetro, vesícula biliar preenchida por conteúdo anecoico, com sedimentação, espessamento e hiperecogenicidade da parede e ducto biliar principal dilatado com parede espessada. Realizou-se a colecistectomia com enterotomia duodenal. A inspeção do conteúdo da vesicular biliar revelou parasitos com um aspecto achatado e a avaliação microscópica foi compatível com Platynosomum sp. O tratamento com niclosamida e oxibendazole foi eficiente. Colecistectomia associada à enterotomia duodenal é eficiente nesses casos.(AU)

Colangiografia transcolecística percutânea em cães / Percutaneous transcholecystic cholangiography in dogs

Enfermidades que acometem o sistema biliar dos cães, principalmente as relacionadas a processos obstrutivos, não são raras, sendo em sua maioria, de etiologia grave, necessitando de tratamento cirúrgico. Os métodos de diagnóstico por imagem para investigação de obstruções biliares atualmente realizados na medicina veterinária como a ultrassonografia, radiografia convencional e tomografia computadorizada, apresentam algumas restrições, como sensibilidade insuficiente, e em muitas regiões inviabilidade de realização. Desta forma, vários pacientes são submetidos a procedimentos cirúrgicos antes da obtenção do diagnóstico preciso, que caracterize e identifique o local de obstrução. Neste contexto, o presente trabalho objetivou padronizar e descrever a técnica de colangiografia transcolecística percutânea em cães, consistindo na injeção percutânea de contraste no interior da vesícula biliar por meio de punção ecoguiada, permitindo a visualização e avaliação semiológica das vias biliares intra e extra-hepáticas, mediante projeções radiográficas. A técnica foi executada 10 vezes em seis cães clinicamente saudáveis, sendo a punção da vesícula biliar realizada através do nono espaço intercostal direito próximo ao esterno com auxílio de um cateter 20G, injetando a dose de 1ml de contraste para cada 4kg de peso vivo. Após a injeção do contraste foram efetuadas radiografias seriadas da região abdominal, em projeção lateral esquerda e ventrodorsal, as primeiras projeções foram realizadas imediatamente após a injeção do contraste sendo repetidas após cinco e dez minutos. Nenhum dos animais apresentou quaisquer efeitos colaterais decorrentes da técnica, sendo verificados por meio de observação dos mesmos e provas de função hepática comparativas pré e pós procedimento. A técnica demonstrou eficácia na demonstração radiográfica da árvore biliar, possibilitando a avaliação semiológica das vias biliares intra e extra-hepáticas. Tal avaliação permite identificar, caracterizar e localizar possíveis processos obstrutivos que acometem as vias biliares na espécie canina.(AU)

Obstructive biliary pathway diseases are not rare in dogs, especially those with severe clinical signs and those that need surgical treatment. Image diagnostic exams to evaluate biliary tract, like ultrasound, conventional X-ray and CT, have been used in veterinary medicine with some restrictions such as low sensibility, and in many regions unfeasibility of achievement. Due to this, most of the pacients with biliary obstruction sings are submitted to surgical procedure before an accurate diagnostic of the disease. This paper aimed to standardize and describe the percutaneous transcolecystic cholangiography in dogs that consists in the injection of contrast inside of the gall bladder guided by ultrasound. It allows to see all the bililary tract, using X-ray. The technique was performed 10 times in six clinical healthy dogs. The puncture was performed in the 9th intercostal right space near to the sternum using a 20G catheter, the dose was 1ml per 4kg. After contrast injection, serial radiographs of the abdominal region were made, in left lateral projection and ventrodorsal, the first projections were performed immediately after contrast injection and repeated after five and ten minutes. No animal showed any side effect due to the technique, this was confirmed by observation and by hepatic function evaluation. The technique was considered efficacious to visualize all the biliary tree and to see any possible obstruction in ill dogs.(AU)

Caracterização das lesões parasitárias de ovinos observadas na linha de abate / Characterization of parasitic lesions of sheep observed at slaughter line

Considerando a possibilidade de erros na identificação das lesões e a necessidade de melhorar o diagnóstico, o objetivo desse trabalho foi caracterizar macroscopicamente e microscopicamente as principais lesões parasitárias observadas em ovinos na linha de abate. Os materiais foram colhidos durante duas visitas a um matadouro frigorífico de ovinos no estado do Rio Grande do Sul. Totalizaram-se 161 amostras com lesões parasitárias de ovinos em diferentes órgãos. As alterações observadas incluíam hidatidose, cisticercose por Cysticercus ovis, cisticercose por Cysticercus tenuicollis, sarcocistose (morfologia compatível com Sarcocystis gigantea), fasciolose (Fasciola hepatica) e esofagostomose. Das 161 amostras, 25,5% correspondiam a hidatidose, e os cistos hidáticos foram observados, predominantemente, nos pulmões (46,3%) e fígado (41,5%). Ao corte, os cistos demonstraram três padrões morfológicos: cistos uniloculares viáveis (34%); cistos multivesiculares viáveis (31,7%); e cistos hidáticos (uniloculares e multivesiculares) degenerados (34%). As lesões de cisticercose por C. ovis (22,4%) foram visualizadas no coração (63,9%), língua (13,9%), músculo masseter (11,1%) e diafragma (11,1%). Morfologicamente os cisticercos foram classificados em vivos (viáveis), degenerados e mineralizados. Lesões provocadas por S. gigantea (19,2%) estavam presentes na túnica muscular do esôfago, na língua e na laringe. Macroscopicamente, observaram-se múltiplas estruturas nodulares brancas que continham uma cápsula fibrosa e lúmen preenchido por material gelatinoso translúcido. Cisticercose por C. tenuicollis representaram 18,6% das lesões. Os cistos foram observados aderidos no omento, no mesentério, na cápsula do fígado e na vesícula biliar. Morfologicamente os cistos foram classificados como vivos (viáveis) e degenerados. Os cistos vivos apresentavam a parede translúcida ou levemente opaca, contendo um escólex no seu interior. Os cistos degenerados eram brancacentos, firmes, com espessa cápsula fibrosa e centro mineralizado. Lesões provocadas por F. hepatica corresponderam a 7,4% dos casos. As lesões hepáticas caracterizavam-se macroscopicamente por espessamento variável dos ductos biliares por fibrose e ocasionalmente havia exemplares de F. hepatica no lúmen dos ductos. Em oito casos, observaram-se áreas de acentuada necrose do parênquima hepático. Lesões provocadas por Oesophagostomum spp. perfizeram 6,8% dos casos. As alterações foram observadas no intestino delgado e intestino grosso de todos os ovinos e em dois casos, havia também envolvimento dos linfonodos mesentéricos. Nos intestinos, as lesões caracterizavam-se por nódulos bem delimitados, salientes na serosa, firmes e que invadiam também a camada muscular. Nos linfonodos havia obliteração do parênquima nodal por acentuada mineralização. É extremamente importante a identificação morfológica das diferentes lesões parasitárias encontradas nas linhas de abate em frigoríficos de ovinos, para posterior destino correto das mesmas. As alterações devem ser avaliadas com o intuito principal de reconhecer a sua capacidade infecciosa. Além disso, é fundamental o conhecimento dos locais anatômicos mais comuns em que cada alteração geralmente costuma ocorrer.(AU)

Considering the possibilities of mistaken diagnoses in identifying lesions at meat inspection this study was designed to provide data for a better-educated diagnosis by the meat inspectors through the gross and microscopic characterization of parasitic lesions observed in slaughtered sheep at the inspection line. One hundred and sixty-one samples of parasitic lesions were sampled from various organs of slaughtered sheep during two visits to a sheep abattoir located in the state of Rio Grande do Sul, Brazil. Lesions observed included hydatid cysts, cysticercosis due to Cysticercus ovis and to Cysticercus tenuicollis, sarcocystosis (morphology compatible with Sarcocystis gigantea), fasciolosis (Fasciola hepatica) and oesophagostomosis. Twenty-five point five percent of the 161 samples corresponded to hydatidosis and the hydatid cysts were observed predominantly in the lungs (46.3%) and liver (41.5%). On cut surface, the cysts had three different morphological patterns: viable unilocular cysts (34%); viable multivesicular cysts (31.7%); and degenerate (unilocular and multivesicular) hydatid cysts (34%). Cysticercosis by C. ovis (22.4%) was observed in the myocardium (63.9%), tongue (13.9%), masseter (11.1%), and diaphragm (11.1%). Morphologically the cysticerci were classified as viable, degenerated or mineralized. Lesions caused by S. Gigantea (19.2%) were observed in the muscle layer of the esophagus, tongue, and larynx. Grossly there were multiple white nodular structures that contained a fibrous capsule with the lumen filled by translucent and gelatinous material. Cysticercosis by C. tenuicollis accounted for 18.6% of observed parasitic lesions; the cysts adhered to the omentum, mesentery, liver capsule, and serosal surface of gall bladder; grossly the cysts were classified as viable and degenerated. Viable cysts had translucent or slightly opaque walls and contained a single scolex. Degenerated cysts were white, firm and with a thick fibrous capsule and mineralized center. Lesions caused by F. hepatica accounted for 7.4% of the cases and were grossly characterized by variable fibrous thickening of bile ducts which occasionally contained the adult flukes in their lumina. In eight cases there were marked areas of necrosis in the hepatic parenchyma. Lesions caused Oesophagostomumspp. accounted for 6.8% of the observed parasitic cases and the changes were observed in all cases in the walls of the small and large intestine; in two cases mesenteric lymph nodes were also involved. In the intestines, lesions were characterized by firm well-circumscribed nodules prominent in the serosal surface and also invading the muscle layer. In the lymph nodes marked mineralization obliterated the nodal parenchyma. The correct identification of the various parasitic lesions found in the viscera of sheep in the abattoir inspection line it is important to dictate the proper destination of affected organs and carcasses. The lesions should be evaluated aiming to determine their infective capacity and to acquire knowledge about their more frequent anatomical sites.(AU)

Colangiografia transcolecística percutânea em cães / Percutaneous transcholecystic cholangiography in dogs

Enfermidades que acometem o sistema biliar dos cães, principalmente as relacionadas a processos obstrutivos, não são raras, sendo em sua maioria, de etiologia grave, necessitando de tratamento cirúrgico. Os métodos de diagnóstico por imagem para investigação de obstruções biliares atualmente realizados na medicina veterinária como a ultrassonografia, radiografia convencional e tomografia computadorizada, apresentam algumas restrições, como sensibilidade insuficiente, e em muitas regiões inviabilidade de realização. Desta forma, vários pacientes são submetidos a procedimentos cirúrgicos antes da obtenção do diagnóstico preciso, que caracterize e identifique o local de obstrução. Neste contexto, o presente trabalho objetivou padronizar e descrever a técnica de colangiografia transcolecística percutânea em cães, consistindo na injeção percutânea de contraste no interior da vesícula biliar por meio de punção ecoguiada, permitindo a visualização e avaliação semiológica das vias biliares intra e extra-hepáticas, mediante projeções radiográficas. A técnica foi executada 10 vezes em seis cães clinicamente saudáveis, sendo a punção da vesícula biliar realizada através do nono espaço intercostal direito próximo ao esterno com auxílio de um cateter 20G, injetando a dose de 1ml de contraste para cada 4kg de peso vivo. Após a injeção do contraste foram efetuadas radiografias seriadas da região abdominal, em projeção lateral esquerda e ventrodorsal, as primeiras projeções foram realizadas imediatamente após a injeção do contraste sendo repetidas após cinco e dez minutos. Nenhum dos animais apresentou quaisquer efeitos colaterais decorrentes da técnica, sendo verificados por meio de observação dos mesmos e provas de função hepática comparativas pré e pós procedimento... (AU)

Obstructive biliary pathway diseases are not rare in dogs, especially those with severe clinical signs and those that need surgical treatment. Image diagnostic exams to evaluate biliary tract, like ultrasound, conventional X-ray and CT, have been used in veterinary medicine with some restrictions such as low sensibility, and in many regions unfeasibility of achievement. Due to this, most of the pacients with biliary obstruction sings are submitted to surgical procedure before an accurate diagnostic of the disease. This paper aimed to standardize and describe the percutaneous transcolecystic cholangiography in dogs that consists in the injection of contrast inside of the gall bladder guided by ultrasound. It allows to see all the bililary tract, using X-ray. The technique was performed 10 times in six clinical healthy dogs. The puncture was performed in the 9th intercostal right space near to the sternum using a 20G catheter, the dose was 1ml per 4kg. After contrast injection, serial radiographs of the abdominal region were made, in left lateral projection and ventrodorsal, the first projections were performed immediately after contrast injection and repeated after five and ten minutes. No animal showed any side effect due to the technique, this was confirmed by observation and by hepatic function evaluation. The technique was considered efficacious to visualize all the biliary tree and to see any possible obstruction in ill dogs.(AU)