Rupture of Pregnancy in The Rudimentary Uterine Horn At 32 Weeks

Objective: Rudimentary horn is a developmental anomaly of the uterus. Pregnancy in a rudimentary horn is rare, represents a form of ectopic gestation. The diagnose of the rudimentary horn pregnancy is very difficult before it ruptures. Case: We present a case of pregnancy in the communicating horn that was difficult to diagnose which ruptured at 32 weeks. An emergency exploratory laparotomy revealed complete rupture of the rudimentary horn. A non viable female infant with a birth weight of 1900 g was delivered. The ruptured rudimentary horn and left tube were excised together. Conclusion: Despite recent advances in ultrasound, the diagnosis of pregnancy in the rudimentary horn remains elusive with confirmatory diagnosis being made at laparotomy. Because of variable muscular constitution of the wall of the rudimentary horn, pregnancy can be accomodated until late in pregnancy, when rupture occurs manifesting commonly as acute abdomen with high risk of maternal mortality.