title: Sonographic detection of ureteral calculi in patients with normal excretory urography.
abstract: We report 3 cases of nonobstructing distal ureteral calculi diagnosed by sonography in which excretory urography was normal. In each case sonography was performed because of high clinical suspicion for a ureteral stone. In 2 patients a stone was impacted at an edematous ureteral orifice. All 3 patients subsequently passed the stone spontaneously. A high resolution ultrasound examination should be performed on patients with a history suggestive of ureteral calculus despite a normal excretory urogram.
authors.affiliation: Department of Urology, University of Virginia Health Sciences Center, Charlottesville.
authors.forename: S C
authors.initials: SC
authors.lastname: Kolbeck
authors.forename: L R
authors.initials: LR
authors.lastname: Watson
authors.forename: A D
authors.initials: AD
authors.lastname: Jenkins
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D011859:Radiography; D014463:Ultrasonography; D014513:Ureter / Q000000981:diagnostic imaging; D014514:Ureteral Calculi / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014554:Urination