Hepatocellular carcinoma in a free‐living marmoset (<italic>Callithrix</italic> sp.) with concomitant biliary trematodiasis.

Abstract: Hepatocellular carcinoma (HCC) is rare in New World primates. We report the gross, microscopical, and immunocytochemical features of a spontaneous HCC in a free‐living marmoset (<italic>Callithrix</italic> sp.). Hepatitis B and C virus and aflatoxin immunohistochemistry were negative; however, concomitant intra‐ and extrahepatic biliary trematodiasis could have played a role. [ABSTRACT FROM AUTHOR]