TUMORS OF LIVER AND BILIARY SYSTEM

  • 1 January 1976
    • journal article
    • research article
    • Vol. 53  (2-3) , 187-194
Abstract
Tumors of the liver and intrahepatic biliary system are common in most domestic animals, although absolute prevalence figures are not available. The most common tumors are liver cell adenoma, hepatocellular carcinoma and cholangiocarcinoma. Benign bile duct tumors are infrequent, and gallbladder tumors are seldom recognized. This classification is based on examples from the dog, cat, ox, sheep and pig, but none from the horse. The tumors occurred in male and female animals, but no information is available on sex predisposition. Liver tumors in animals resemble the corresponding neoplasms in man. Animal tumors metastasized less frequently than might have been predicted from histological features. Little difference in the histological characteristics of the tumors was found among the animal species studied, except that in cattle cholangiocarcinoma was a more scirrhous tumor than its canine counterpart and was more likely to show abdominal organ dissemination.

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