title: Cryptomenorrhea--pyelographic appearances.
mesh_terms: D000293:Adolescent; D000568:Amenorrhea / Q000150:complications / Q000000981:diagnostic imaging* / Q000209:etiology; D044383:Black People; D003937:Diagnosis, Differential; D005260:Female; D006398:Hematocele / Q000175:diagnosis; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology*; D006924:Hymen; D007275:Injections, Intravenous; D008297:Male; D013019:South Africa; D014567:Urography; D014621:Vagina / Q000002:abnormalities