title: Bladder diverticulum: an uncommon cause of acute retention of urine in a male child.
mesh_terms: D000208:Acute Disease; D002675:Child, Preschool; D004240:Diverticulum / Q000150:complications* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D011859:Radiography; D014524:Urethral Obstruction / Q000150:complications / Q000209:etiology; D001745:Urinary Bladder Diseases / Q000150:complications* / Q000000981:diagnostic imaging; D014555:Urination Disorders / Q000209:etiology*