title: Ureterolithiasis and papilloma formation in the ureter of a guinea pig.
abstract: A 5-year-old guinea pig with suspected urolithiasis was presented for radiology and ultrasound examinations of the abdomen. Radiographically, an irregular-shaped mineral opacity was detected in the area of the urinary bladder. Ultrasonographically, pyelectasia of the right kidney, hydroureter with an ureterolith cranial to a thickened ureter wall close to the ureterovesical junction, and a thickened urinary bladder wall were detected. Histopathologically, the thickened ureter wall was found to be a papilloma. The ureter calculus consisted of 100% calcite.
authors.affiliation: Department of Diagnostic Imaging, Veterinary Faculty of Zurich, Winterthurerstrasse 268, CH-8057 Zurich, Switzerland.
authors.forename: Susanne M
authors.initials: SM
authors.lastname: Stieger
authors.forename: Christian
authors.initials: C
authors.lastname: Wenker
authors.forename: Daniela
authors.initials: D
authors.lastname: Ziegler-Gohm
authors.forename: Mark
authors.initials: M
authors.lastname: Flückiger
mesh_terms: D000818:Animals; D003937:Diagnosis, Differential; D006168:Guinea Pigs; D008297:Male; D010212:Papilloma / Q000000981:diagnostic imaging / Q000662:veterinary*; D011859:Radiography; D012376:Rodent Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D014463:Ultrasonography; D014514:Ureteral Calculi / Q000000981:diagnostic imaging / Q000662:veterinary*; D014516:Ureteral Neoplasms / Q000000981:diagnostic imaging / Q000662:veterinary*