Abdominal ectopic pregnancy at 17 weeks: a case report.

Abdominal ectopic pregnancy is a rare and potentially life-threatening condition requiring timely diagnosis and coordinated surgical care. We report the case of a 28-year-old woman, gravida 2, abortus 1, para 0 (G2A1P0), at 17 weeks' gestation, identified during routine antenatal care with suspected abdominal pregnancy. Ultrasound findings prompted further evaluation with magnetic resonance imaging, which clarified the implantation site and confirmed the diagnosis. On admission, she was hemodynamically stable, with mild anaemia and elevated β-hCG levels. Following multidisciplinary planning and preparation for possible massive transfusion, elective laparotomy revealed the gestation within the left rudimentary uterine horn beneath the meso-sigmoid colon. The fetus and gestational structures were removed, and mesocolon repair was completed without complication. The patient recovered uneventfully and was discharged on postoperative day 10. This case underscores the importance of advanced imaging, meticulous surgical planning, and multidisciplinary collaboration in managing abdominal ectopic pregnancy.