title: Endoscopic diagnosis and treatment of chronic unilateral hematuria of uncertain etiology.
abstract: We evaluated 12 patients with unilateral unexplained gross hematuria by flexible ureteropyeloscopy and percutaneous pyeloscopy. All patients had localized bleeding except for 1 with diffuse bleeding caused by the nutcracker phenomenon, and 2 in whom no hematuria appeared upon examination and no gross lesions were observed. Among the 9 patients with localized bleeding transitional cell carcinoma was found in 1, hemangioma in 4 and minute venous rupture in 4. These 9 patients were treated endoscopically and no recurrences were observed during a follow-up of 6 to 21 months (average 10.3 months). Our results underscore the importance and efficacy of flexible ureteropyeloscopy in the evaluation and management of chronic unilateral hematuria.
authors.affiliation: Department of Urology, Okayama University Medical School, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Kumon
authors.forename: M
authors.initials: M
authors.lastname: Tsugawa
authors.forename: Y
authors.initials: Y
authors.lastname: Matsumura
authors.forename: H
authors.initials: H
authors.lastname: Ohmori
mesh_terms: D000293:Adolescent; D000368:Aged; D002908:Chronic Disease; D004724:Endoscopy; D005260:Female; D006391:Hemangioma / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000628:therapy; D006417:Hematuria / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000628:therapy; D007682:Kidney Pelvis / Q000473:pathology; D008297:Male; D012082:Renal Veins / Q000473:pathology; D012422:Rupture, Spontaneous; D014513:Ureter / Q000473:pathology; D014567:Urography