title: Seminoma in hybrid catfish [Clarias batrachus (Linnaeus) female x Clarias gariepinus (Burchell) male].
abstract: Spontaneous testicular tumors, seminoma, were noticed in four male hybrid catfish (C. batrachus female x C. gariepinus male) after the age of two years. The hybrids showed massive abdominal swelling with catchectic body and free lobulated, encapsulated tumors (> 325 g) within the serosanguinous fluid-filled peritoneal cavities. The tumor cells were large and polyhedral with prominent centrally located nuclei. Other vital organs appeared normal. It seems to be the first report of seminoma in hybrid catfish and possibly of genetic cause.
authors.affiliation: Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar 751 002, India. pksahoo1@hotmail.com
authors.forename: P K
authors.initials: PK
authors.lastname: Sahoo
authors.forename: S K
authors.initials: SK
authors.lastname: Sahoo
authors.forename: S S
authors.initials: SS
authors.lastname: Giri
authors.forename: T
authors.initials: T
authors.lastname: Swain
authors.forename: A K
authors.initials: AK
authors.lastname: Sahu
mesh_terms: D000005:Abdomen / Q000473:pathology; D000008:Abdominal Neoplasms / Q000378:metabolism*; D000818:Animals; D002397:Catfishes; D002678:Chimera; D005260:Female; D008214:Lymphocytes / Q000378:metabolism; D008297:Male; D018239:Seminoma / Q000378:metabolism*; D013154:Spleen / Q000378:metabolism