An unusual haemoperitoneum – secondary abdominal pregnancy

A 36-year-old amenorrhoeic patient presented with vague abdominal discomfort, and haemodynamic instability, a large haemoperitoneum was identified on transvaginal ultrasound. Ruptured tubal ectopic pregnancy was suspected. At laparotomy ruptured primary tubal ectopic pregnancy was identified, with 12–14 week secondary abdominal pregnancy implanted onto the omentum, confirmed by histopathology. Salpingo-oophrectomy with peritoneal washout was performed, and three units blood transfusion was required. The patient had an uneventful recovery to health.