An epithelial papilloma of the brown bullhead, Ictalurus nebulosus.
D000820:Animal Diseases / Q000453:epidemiology*; D000818:Animals; D005393:Fish Diseases / Q000453:epidemiology / Q000473:pathology; D005399:Fishes; D010212:Papilloma / Q000473:pathology / Q000662:veterinary*; D012878:Skin Neoplasms / Q000473:pathology / Q000662:veterinary*; D014768:Virginia