title: Pathological observations of hepatic tumours in ducks.
abstract: During August to October, 1983, 73 of 113 ducks submitted to our laboratory from a duck farm for pathological examination were found to have a variety of hepatic tumours. Grossly, the lesions could be divided into three groups: nodular, macro-nodular and diffuse forms; the nodular form was the most frequently seen (54/73). Histopathologically, the tumours could be classified into six categories: liver cell adenoma, cholangioadenoma, hepatocellular carcinoma, cholangiocarcinoma, mixed hepatic carcinomas and metastatic hepatic carcinoma, and the hepatocellular carcinoma was the most common (68/73).
authors.affiliation: Guangdong Provincial Poultry Science Research Institute, Guangzhou, People's Republic of China.
authors.forename: Y S
authors.initials: YS
authors.lastname: Ling
authors.forename: Y J
authors.initials: YJ
authors.lastname: Guo
authors.forename: L K
authors.initials: LK
authors.lastname: Yang