Late diagnosis of imperforate hymen with hematometrocolpos and bilateral hydronephrosis of a horseshoe kidney.

Imperforate hymen is a fairly uncommon genital disorder where the hymen completely obstructs the vaginal opening. Several authors have ruled out its co-occurrence with other congenital anomalies. In this report, we discuss the exceptional case of a late diagnosis of imperforate hymen associated with bilateral hydronephrosis of a horseshoe kidney in a 19-year-old female patient. To our knowledge, an association of imperforate hymen and horseshoe kidney has never been reported.