title: [Unusual cause of obstruction of the bladder neck in a child].
mesh_terms: D002675:Child, Preschool; D003558:Cystoscopy; D004240:Diverticulum / Q000000981:diagnostic imaging*; D006801:Humans; D007668:Kidney / Q000002:abnormalities*; D008297:Male; D001745:Urinary Bladder Diseases / Q000000981:diagnostic imaging; D001748:Urinary Bladder Neck Obstruction / Q000209:etiology*; D014567:Urography
vernacular_title: Ungewöhnliche Ursache der Obstruktion des Harnblasenhalses beim Kind.