Rupture of non-communicating rudimentary uterine horn at 16 weeks of gestation

Pregnancy in non-communicating rudimentary horn is extremely rare and the usual presentation is rupture of rudimentary horn in second trimester of pregnancy resulting in severe haemoperitoneum which can be life threatening. We report a case of ruptured rudimentary horn pregnancy in 23 years old G2P0A1Lo whose diagnosis was initially missed by ultrasonography and presented to us in hemorrhagic shock. Exploratory laparotomy revealed ruptured rudimentary horn pregnancy at 16 weeks with haemoperitoneum and excision of ruptured left rudimentary horn with ipsilateral salpingectomy was done.