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1.
Braz. J. Vet. Pathol. ; 13(3): 602-608, nov. 2020. ilus
Artigo em Inglês | VETINDEX | ID: vti-31330

Resumo

Osteosarcoma is a malignant primary tumor of the bone, which is considered rare in birds. This report describes an osteoblastic osteosarcoma in a scarlet macaw (Ara macao), which was apathetic with progressive weight loss, and had a tumor in the distal portion of the femur and proximal tibiotarsus with ulcerated pododermatitis in the contralateral limb. Euthanasia was elected due to poor diagnosis after radiographic and cytological examination. Histopathology and immunohistochemistry were performed and confirmed the diagnosis of an osteoblastic osteosarcoma with hepatic and pulmonary metastases.(AU)


Assuntos
Animais , Psittaciformes/anormalidades , Osteossarcoma/classificação , Osteossarcoma/veterinária , Metástase Neoplásica , Animais de Zoológico
2.
Braz. j. vet. pathol ; 13(3): 602-608, nov. 2020. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1469773

Resumo

Osteosarcoma is a malignant primary tumor of the bone, which is considered rare in birds. This report describes an osteoblastic osteosarcoma in a scarlet macaw (Ara macao), which was apathetic with progressive weight loss, and had a tumor in the distal portion of the femur and proximal tibiotarsus with ulcerated pododermatitis in the contralateral limb. Euthanasia was elected due to poor diagnosis after radiographic and cytological examination. Histopathology and immunohistochemistry were performed and confirmed the diagnosis of an osteoblastic osteosarcoma with hepatic and pulmonary metastases.


Assuntos
Animais , Metástase Neoplásica , Osteossarcoma/classificação , Osteossarcoma/veterinária , Psittaciformes/anormalidades , Animais de Zoológico
3.
Braz. J. Vet. Pathol. ; 13(1): 53-56, Mar. 2020. ilus
Artigo em Inglês | VETINDEX | ID: vti-28830

Resumo

Cholangiocarcinomas are neoplasms originating from the biliary epithelium. This report describes the gross, microscopic, and immunohistochemical findings in a case of cholangiocarcinoma in an Australian goose (Cereopsisnovaehollandiae). The animal had cachexia and ascites. The liver and gallbladder had cystic masses that was diagnosed as acholangiocarcinoma.(AU)


Assuntos
Animais , Gansos , Colangiocarcinoma/patologia , Colangiocarcinoma/veterinária , Neoplasias dos Ductos Biliares/patologia , Neoplasias dos Ductos Biliares/veterinária
4.
Braz. j. vet. pathol ; 13(1): 53-56, Mar. 2020. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1469755

Resumo

Cholangiocarcinomas are neoplasms originating from the biliary epithelium. This report describes the gross, microscopic, and immunohistochemical findings in a case of cholangiocarcinoma in an Australian goose (Cereopsisnovaehollandiae). The animal had cachexia and ascites. The liver and gallbladder had cystic masses that was diagnosed as acholangiocarcinoma.


Assuntos
Animais , Colangiocarcinoma/patologia , Colangiocarcinoma/veterinária , Gansos , Neoplasias dos Ductos Biliares/patologia , Neoplasias dos Ductos Biliares/veterinária
5.
Braz. j. vet. pathol ; 11(3): 113-115, Nov. 2018. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1469716

Resumo

Primary renal neoplasms are infrequent in domestic animals and birds, being budgerigars an exception. This report describes a papillary renal adenoma in a toco toucan (Ramphastos toco), which was euthanized due to poor prognosis after surgical intervention of phalanx fractures in both wings. Grossly, the caudal pole of the right kidney had a nodular lesion measuring 3.5 x 1.7 x 1.5 cm. Microscopically, there was a well delimited neoplasm arranged in large and coalescent papillary structures composed by a single layer of epithelial cells. There was mild to moderate nuclear and cytoplasmic pleomorphism, whereas mitotic figures were absent. In conclusion, this tumor was considered as an accidental finding, which is similar to the majority of adenomas reported in domestic mammals.


Assuntos
Animais , Adenoma/veterinária , Aves , Neoplasias Renais/veterinária , Rim/patologia , Animais Selvagens
6.
Braz. J. Vet. Pathol. ; 11(3): 113-115, Nov. 2018. ilus
Artigo em Inglês | VETINDEX | ID: vti-740895

Resumo

Primary renal neoplasms are infrequent in domestic animals and birds, being budgerigars an exception. This report describes a papillary renal adenoma in a toco toucan (Ramphastos toco), which was euthanized due to poor prognosis after surgical intervention of phalanx fractures in both wings. Grossly, the caudal pole of the right kidney had a nodular lesion measuring 3.5 x 1.7 x 1.5 cm. Microscopically, there was a well delimited neoplasm arranged in large and coalescent papillary structures composed by a single layer of epithelial cells. There was mild to moderate nuclear and cytoplasmic pleomorphism, whereas mitotic figures were absent. In conclusion, this tumor was considered as an accidental finding, which is similar to the majority of adenomas reported in domestic mammals.(AU)


Assuntos
Animais , Adenoma/veterinária , Neoplasias Renais/veterinária , Rim/patologia , Aves , Animais Selvagens
7.
Braz. j. vet. pathol ; 11(3): 97-101, Nov. 2018. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1469713

Resumo

Squamous cell carcinoma (SCC) is a common oral neoplasm in domestic cats, but there are only a few reports in wild felids. A captive 10-years-old, female Siberian tiger (Panthera tigris altaica), with history of chronic renal disease and serologically positive for Leishmania sp. developed a lytic mandibular nodule that was histologically diagnosed as SCC. At necropsy was also observed an exocrine pancreatic carcinoma, which was considered an incidental finding, and a chronic lympho-plasmocytic interstitial nephritis associated with a membranous glomerulopathy, compatible with the chronic renal disease presented by the animal. To the best of our knowledge this is the first report of an invasive and non-metastatic mandibular SCC in a Siberian tiger.


Assuntos
Animais , Carcinoma de Células Escamosas/veterinária , Neoplasias Mandibulares/veterinária , Neoplasias Pancreáticas/veterinária , Tigres , Leishmaniose/veterinária
8.
Braz. J. Vet. Pathol. ; 11(3): 97-101, Nov. 2018. ilus
Artigo em Inglês | VETINDEX | ID: vti-740892

Resumo

Squamous cell carcinoma (SCC) is a common oral neoplasm in domestic cats, but there are only a few reports in wild felids. A captive 10-years-old, female Siberian tiger (Panthera tigris altaica), with history of chronic renal disease and serologically positive for Leishmania sp. developed a lytic mandibular nodule that was histologically diagnosed as SCC. At necropsy was also observed an exocrine pancreatic carcinoma, which was considered an incidental finding, and a chronic lympho-plasmocytic interstitial nephritis associated with a membranous glomerulopathy, compatible with the chronic renal disease presented by the animal. To the best of our knowledge this is the first report of an invasive and non-metastatic mandibular SCC in a Siberian tiger.(AU)


Assuntos
Animais , Carcinoma de Células Escamosas/veterinária , Tigres , Neoplasias Mandibulares/veterinária , Neoplasias Pancreáticas/veterinária , Leishmaniose/veterinária
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