Abstract
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 language | English (US) |
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Pages (from-to) | 603-608 |
Number of pages | 6 |
Journal | Journal of the National Cancer Institute |
Volume | 66 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1981 |
ASJC Scopus subject areas
- Oncology
- Cancer Research