Cornual pregnancy happens when implantation occurs in the cavity of a rudimentary horn of the uterus, which may or may not be communicating with the uterine cavity. The diagnosis of cornual pregnancy remains challenging, and rupture of a cornual pregnancy usually causes massive bleeding. Early diagnosis and treatment, therefore, are very crucial and key to prevent mortality. Historically, the management of cornual pregnancies included wedge resection through open surgery or even hysterectomy. In this case report, we would like to highlight a case of late second trimester cornual pregnancy, at 19-week and 3-day gestation, which was managed laparoscopically.
Ectopic pregnancy in the interstitial part of the fallopian tube (cornual pregnancy) is a rare condition but can be fatal. Traditionally, the treatment had been cornual resection or hysterectomy. More conservative approaches had been advocated recently. There is no consensus on the dose or number of methotrexate injections that should be used in the treatment of interstitial pregnancies. Single dose intramuscular methotrexate is one of the treatment options. However, the failure rate is higher if the serum beta-hCG (beta-human chorionic gonadotrophin) level is more than 5000 IU/L. We report a case of cornual ectopic pregnancy with high initial serum beta-hCG level being successfully treated with multiple doses of systemic methotrexate. MRI was used to assess clinical resolution of cornual ectopic pregnancy.