Metastatic cholangiocarcinoma in a llama (Lama glama)

J Vet Diagn Invest. 2012 Sep;24(5):986-9. doi: 10.1177/1040638712452110. Epub 2012 Jul 11.

Abstract

A 2-year-old female llama (Lama glama), from a private zoological park, with anorexia, ataxia, dyspnea, ascites, and emaciation, was necropsied. Gross inspection, and cytological, histological, and immunohistochemical analyses were performed. A firm, white, multinodular mass, 25 cm in diameter was found in the liver parenchyma. Similar nodules up to 3 cm were found in lymph nodes, lung, diaphragm, and peritoneum. Histologically, the affected organs were replaced by an infiltrative growth of undifferentiated neoplastic cells. Immunohistochemically, neoplastic cells were positive for pancytokeratin (panCK), CK20, and CK19, and negative for thyroid transcription factor 1, CK7, and carcinoembryonic antigen. A diagnosis of poorly differentiated metastatic cholangiocarcinoma was made.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bile Duct Neoplasms / pathology
  • Bile Duct Neoplasms / veterinary*
  • Bile Ducts, Intrahepatic / pathology*
  • Camelids, New World*
  • Cholangiocarcinoma / pathology
  • Cholangiocarcinoma / veterinary*
  • Fatal Outcome
  • Female
  • Liver / pathology
  • Lung / pathology
  • Lung Neoplasms / secondary