Cowper's glands in the urethrogram.
D000293:Adolescent; D000328:Adult; D002030:Bulbourethral Glands / Q000002:abnormalities / Q000000981:diagnostic imaging*; D002648:Child; D004106:Dilatation; D005832:Genital Diseases, Male / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D008297:Male; D014521:Urethra / Q000000981:diagnostic imaging*; D014522:Urethral Diseases / Q000000981:diagnostic imaging; D014567:Urography