Rupture of left horn of bicornuate uterus at twenty weeks of gestation.

Rupture uterus in nulliparous patients is generally associated with mullerian anomalies. A case of 23 years primigravida with 19 weeks gestation presenting with features of rupture is reported here. Ultrasound helped in the diagnosis of left horn of bicornuate uterus. After exploration, right ruptured horn was excised. The incidence, diagnosis and management of such cases is discussed.