Extrahepatic Biliary Carcinomas in Asiatic Bears

Richard J. Montali, P. Jack Hoopes, Mitchell Bush

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Extrahepatic biliary carcinomas occurred in 2 Asiatic bears at the National Zoological Park in Washington, D.C. The tumors were associated with ascites in both cases and jaundice in 1 and metastasized widely. Neither bear had gallstones. Microscopically, the tumors were infiltrative, scirrhous adenocarcinomas that produced varying amounts of mucin. A genetic predisposition and change from the natural diet were factors proposed to contribute to the development of this neoplasm.

Original languageEnglish (US)
Pages (from-to)603-608
Number of pages6
JournalJournal of the National Cancer Institute
Issue number3
StatePublished - Mar 1981
Externally publishedYes

ASJC Scopus subject areas

  • Oncology
  • Cancer Research


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