title: Ultrasonographic detection of adrenal gland tumor and ureterolithiasis in a guinea pig.
abstract: A 5-year-old guinea pig was presented to the University of Berne Small Animal Radiology Department for an ultrasound examination of the abdomen to confirm a suspected diagnosis of Cushing's syndrome. The patient had bilateral alopecia, was apathic and obese. Ultrasonographically, a tumor of the left adrenal gland, obstruction of the left ureter by an ureterolith, as well as hydronephrosis of the left kidney were detected. During surgery to relieve the ureteral obstruction the adrenal gland tumor was removed. The guinea pig died post-operatively due to blood loss. The left adrenal gland tumor was found histopathologically to be an adenoma and the right adrenal gland also had multiple small adenomas, but grossly appeared normal. The ureterolith was analyzed and found by x-ray diffraction to consist of calcium carbonate.
authors.affiliation: Clinic for Companion Animals, University of Berne, Switzerland.
authors.forename: L
authors.initials: L
authors.lastname: Gaschen
authors.forename: C
authors.initials: C
authors.lastname: Ketz
authors.forename: J
authors.initials: J
authors.lastname: Lang
authors.forename: U
authors.initials: U
authors.lastname: Weber
authors.forename: L
authors.initials: L
authors.lastname: Bacciarini
authors.forename: I
authors.initials: I
authors.lastname: Kohler
mesh_terms: D000236:Adenoma / Q000000981:diagnostic imaging / Q000662:veterinary*; D000310:Adrenal Gland Neoplasms / Q000000981:diagnostic imaging / Q000662:veterinary*; D000505:Alopecia / Q000000981:diagnostic imaging / Q000662:veterinary; D000818:Animals; D002119:Calcium Carbonate / Q000032:analysis; D003480:Cushing Syndrome / Q000000981:diagnostic imaging / Q000662:veterinary; D006168:Guinea Pigs; D006869:Hydronephrosis / Q000000981:diagnostic imaging / Q000662:veterinary; D008297:Male; D009765:Obesity / Q000000981:diagnostic imaging / Q000662:veterinary; D019106:Postoperative Hemorrhage / Q000662:veterinary; D012376:Rodent Diseases / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D014514:Ureteral Calculi / Q000737:chemistry / Q000000981:diagnostic imaging / Q000662:veterinary*; D014961:X-Ray Diffraction
chemical_list: D002119:Calcium Carbonate