[Congenital valves of the posterior urethra].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology; D007223:Infant; D008297:Male; D011859:Radiography; D014521:Urethra / Q000002:abnormalities*; D014522:Urethral Diseases / Q000000981:diagnostic imaging; D014552:Urinary Tract Infections / Q000209:etiology; D014555:Urination Disorders / Q000209:etiology
Wrodzone zastawki tylnej cewki moczowej.