Cholangiocarcinoma in an American Rhea (Rhea Americana araneipes)

Ciência Rural

Paulo Ricardo Dell'armelina Rocha¹  Letícya Lerner Lopes¹  Laura Peixoto De Arruda¹  Caroline Argenta Pescador¹  Raquel Aparecida Sales Da Cruz¹  Edson Moleta Colodel¹ 

关键词: cholangiocarcinoma;    Rhea;    immunohistochemistry;    wildlife;    colangiocarcinoma;    ema;    imuno-histoquímica;    aves selvagens;   

DOI  :  10.1590/0103-8478cr20140822

来源: SciELO

【 摘 要 】

Cholangiocarcinomas are neoplasms that originate from the bile duct epithelium. The present case described a cholangiocarcinoma in an adult female American Rhea (Rhea Americana araneipes) by means of gross, histopathology and immunohistochemistry. Irregular, firm, multifocal, yellow-white masses, measuring from 0.4 to 6cm in diameter were observed in both liver lobes. At the cut surface, multiple firm nodules filled with connective tissue were present. Microscopically, the neoplasia was composed of small, irregular, gland-like structures of neoplastic cells surrounded by connective tissue. The cells resembled epithelial cells of the hepatic biliary ducts. Neoplastic cells were positive for cytokeratin and negative for vimentin. This is the first report of a malignant fatal neoplasia in an American Rhea.

【 授权许可】

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