title: Multiple Uric Acid Bladder Stones: Clinical Presentation and Endoscopic Management.
abstract: Background:Bladder urinary calculi occur in 3%-8% of men with bladder outlet obstruction, and although most of them are composed of calcium, in a few cases uric acid bladder stones are diagnosed.Case Presentation:We present clinical images and therapeutic management of a 65-year-old diabetic man with significant prostate enlargement and >30 bladder stones, the largest being 17 mm. Despite the large stone burden, the patient was managed by cystolithotripsy. Remarkably, stone composition analysis revealed 100% uric acid stone. Intraoperative and postoperative course were uneventfully.Conclusion:Uric acid bladder stone pathogenesis seems to be multifactorial with local and systemic factors contributing in different manners and even large stone burdens may be cystoscopically managed.
authors.affiliation: University of Sao Paulo Medical School , Sao Paulo, Brazil .
authors.forename: Fabio Cesar Miranda
authors.initials: FC
authors.lastname: Torricelli
authors.affiliation: Cleveland Clinic Glickman Urological and Kidney Institute , Cleveland, Ohio.
authors.forename: Shih-Chieh Jeff
authors.initials: SJ
authors.lastname: Chueh
authors.affiliation: Cleveland Clinic Glickman Urological and Kidney Institute , Cleveland, Ohio.
authors.forename: Shujane
authors.initials: S
authors.lastname: Shen
authors.affiliation: Cleveland Clinic Glickman Urological and Kidney Institute , Cleveland, Ohio.
authors.forename: Manoj
authors.initials: M
authors.lastname: Monga
keywords: endoscopy; metabolic stone; obstruction; uric acid; urolithiasis