Cholangiocarcinoma in a Ring-Necked Pheasant (Phasianus colchicus): a case report

Abstract

A case of cholangiocarcinoma in a two-year-old Ring-Necked Pheasant (Phasianus colchicus) is reported. The liver was enlarged and numerous white foci were seen in the liver parenchyma. Histopathologically, channels with or without lumens and separated from one another by thin connective tissue septa were observed. Tumour cells were strongly positive for cytokeratin, Ki-67 and proliferative cell nuclear antigen. This is the first report of colangiocarcinoma in pheasants.

Reporte de caso: colangiocarcinoma y disgerminoma en pava aliblanca (Penelope albipennis), Perú

“…Estos carcinomas se caracterizan por un crecimiento incontrolado y progresivo de las células del conducto biliar (Ponomarkov y Mackey, 1976;Cullen, 2017). Histopatológicamente, los tumores de vías biliares están conformados por células epiteliales columnares a cuboidales, organizadas en forma de glándulas, hileras, cordones, túbulos o conductos separados por mínimas cantidades de estroma, donde la infiltración del parénquima hepático es manifiesta, pudiéndose observar figuras mitóticas (Ozmen , 2012).…”