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A teratoma in a duck infected congenitally with duck hepatitis B virus
J M Cullen1, J E Newbold, G J Sherman
1Department of Microbiology, Pathology, and Parasitology, College of Veterinary Medicine, North Carolina State University, Raleigh 27606.
Avian Diseases
|July 1, 1991
Abstract:
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.