title: Caliceal obstruction owing to a large parapelvic cyst: excretory urography, ultrasound and computerized tomography findings.
abstract: Benign parapelvic cysts are a common finding on radiology studies. Rarely, a parapelvic cyst may enlarge enough to obstruct the renal calices. We report a case in which computerized tomography following an excretory urogram and ultrasound proved to be especially helpful in the noninvasive evaluation of an obstructing parapelvic cyst.
mesh_terms: D000368:Aged; D006801:Humans; D007670:Kidney Calices; D052177:Kidney Diseases, Cystic / Q000150:complications / Q000175:diagnosis*; D008297:Male; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014567:Urography