title: Infravesical obstruction caused by a retrovesical malignant schwannoma.
abstract: A 77-year-old male presented himself with acute urinary retention, and a history of infravesical obstruction. Cystourethroscopy failed to show the obstruction. A malignant schwannoma (MS) causing impression in the bladder was removed through a laparotomy. Postoperatively there were no urologic symptoms, and the urodynamic investigations had changed to normal.
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D009442:Neurilemmoma / Q000150:complications*; D010386:Pelvic Neoplasms / Q000150:complications*; D014555:Urination Disorders / Q000209:etiology*