title: Surgical removal of an ovarian tumour in a koi carp (Cyprinus carpio).
abstract: Ultrasonography, radiography and exploratory coeliotomy were used to diagnose and treat a large intracoelomic neoplasm from a female koi carp (Cyprinus carpio) presented for abdominal enlargement of several months duration. Feed was withheld for 1 week immediately prior to surgery and the fish was sedated with isoeugenol (AQUI-S) at a dose rate of 10 mL/L to facilitate diagnostic imaging techniques. Surgical anaesthesia was induced by adding tricaine (MS-222) 50 mg/L to the water and an exploratory coeliotomy and tumour removal was performed. The fish was allowed to recover in fresh water at 18 degrees C and salt was added slowly to the water over a period of 1 hour to a concentration of 5 g/L This concentration was maintained in a recovery pond for 1 week postoperatively. Enrofloxacin was administered intramuscularly (10 mg/kg) immediately, 3 days and 1 week postoperatively. A diagnosis of undifferentiated ovarian carcinoma was made on the basis of the histological appearance of the neoplasm and immunohistochemical staining.
authors.affiliation: School of Agriculture and Veterinary Sciences, Charles Sturt University, Boorooma Street, Wagga Wagga, New South Wales 2678.
authors.forename: S R
authors.initials: SR
authors.lastname: Raidal
authors.forename: P L
authors.initials: PL
authors.lastname: Shearer
authors.forename: F
authors.initials: F
authors.lastname: Stephens
authors.forename: J
authors.initials: J
authors.lastname: Richardson
mesh_terms: D000818:Animals; D002277:Carcinoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D002347:Carps; D005260:Female; D005393:Fish Diseases / Q000175:diagnosis / Q000601:surgery*; D007150:Immunohistochemistry / Q000662:veterinary; D010535:Laparoscopy / Q000379:methods / Q000662:veterinary; D010051:Ovarian Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D016896:Treatment Outcome