Cornual Ectopic Pregnancy Diagnosed in the First Trimester: A Case Report

Abstract

Cornual ectopic pregnancy is a rare and potentially life-threatening condition, accounting for only 2–4% of all ectopic pregnancies. Its diagnosis is often delayed due to non-specific symptoms and its deceptive sonographic appearance, which can mimic an intrauterine gestation. We report the case of a 37-year-old woman who presented at 9 weeks of amenorrhea with isolated pelvic pain. Transvaginal ultrasound revealed an empty uterine cavity and a gestational sac located in the left cornual region, surrounded by a thin myometrial mantle. The Serum β-hCG level was 4,343 IU/L. A diagnosis of unruptured cornual pregnancy was made. The patient underwent surgical management via laparotomy, consisting of cornual resection and ipsilateral salpingectomy, with a favourable postoperative course. This case highlights the importance of early transvaginal ultrasound evaluation, awareness of diagnostic criteria, and timely management to prevent catastrophic rupture. The diagnostic features, management options, and reproductive outcomes associated with this rare entity are also discussed.