Cholangiocarcinoma in an American Rhea (Rhea Americana araneipes)

Ciência Rural

Lopes, Letícya Lerner³  Rocha, Paulo Ricardo Dell'Armelina¹  Pescador, Caroline Argenta³  Colodel, Edson Moleta³  Cruz, Raquel Aparecida Sales da²  Arruda, Laura Peixoto de³ 

[1] Universidade Estadual Paulista, Araçatuba, Brazil;Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil;Universidade Federal do Mato Grosso, Cuiabá, Brazil

关键词: cholangiocarcinoma;    Rhea;    immunohistochemistry;    wildlifeRESUMOColangiocarcinomas são neoplasias originárias do epitélio do ducto biliar;   

DOI  :  10.1590/0103-8478cr20140822

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 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】

Unknown