The Herlyn-Werner-Wunderlich triad (OHVIRA syndrome) with good pregnancy outcome - two cases and literature review.

The Herlyn-Werner-Wunderlich syndrome (HWWS) is a complex congenital malformation, originally described as a triad of symptoms: didelphys uterus, low genital obstruction and unilateral renal anomaly. The term OHVIRA is an acronym (obstructed hemivagina/hemicervix with ipsilateral renal anomaly) and refers to the same syndrome. It gained acceptance in recent years, due to reports of cases having a non-didelphys uterus (normal, septated or having other abnormalities).