author keywords: Ameiurus catus; cutaneous epitheliotropic lymphosarcoma; neoplasia; white catfish

MeSH headings : Animals; Epidermis / pathology; Fish Diseases; Ictaluridae; Lymphoma, Non-Hodgkin; Mammals; Skin Neoplasms / pathology; Skin Neoplasms / veterinary

TL;DR: This is the first reported case of cutaneous epitheliotropic lymphosarcoma in an ictalurid and one of the few published cases of this condition in any fish species. (via Semantic Scholar)