[Magnetic resonance imaging as supplement to clinical examination by suspicion of haematocolpos].

Haematocolpos is a rare condition in young women that could be caused by imperforated hymen, vaginal atresia and vaginal agenesis. Haematocolpos is usually diagnosed at early puberty with unspecified abdominal pain and amenorrhoea. Three cases are presented. In one case the radiological examination showed incidentally a urogenital congenital anomaly known as Herlyn-Werner-Wunderlich syndrome. A gynaecological examination should be performed to confirm the presence of imperforated hymen, but in cases in which other pathology is suspected ultrasound and MRI should also be performed.