Cullen J M, Newbold J E, Sherman G J
Department of Microbiology, Pathology, and Parasitology, College of Veterinary Medicine, North Carolina State University, Raleigh 27606.
Avian Dis. 1991 Jul-Sep;35(3):638-41.
A teratoma was diagnosed in an 8-month-old pekin duck based on the presence of tissue derived from embryonic ectoderm, mesoderm, and endoderm in the neoplasm. The neoplasm was examined for the presence of duck hepatitis B virus, because the duck was congenitally infected with the virus, a member of the hepadnavirus family that is associated with hepatic neoplasms in hepadnavirus-infected mammals. Persistent infection occurred in the liver, but no evidence of viral infection was found in the neoplasm.
根据肿瘤中存在源自胚胎外胚层、中胚层和内胚层的组织，在一只8个月大的北京鸭中诊断出畸胎瘤。对该肿瘤进行了鸭乙型肝炎病毒检测，因为这只鸭子先天性感染了该病毒，鸭乙型肝炎病毒是嗜肝DNA病毒科的成员，在感染嗜肝DNA病毒的哺乳动物中与肝脏肿瘤有关。肝脏中发生了持续感染，但在肿瘤中未发现病毒感染的证据。
