Interstitial Tubal Ectopic Pregnancy: Case Report and Review of the Literature

Background: Interstitial pregnancy is a rare variant of tubal ectopic pregnancy that carries a risk of life-threatening hemorrhage. Case: A gravida 4, parity 2, female, with 1 previous abortion, presented at 8 weeks of pregnancy. She was experiencing dizziness, pain in her abdomen, and vaginal bleeding. A transvaginal scan was suggestive of a left-sided, ruptured ectopic pregnancy that was probably an interstitial pregnancy. The patient underwent emergency surgery. On laparoscopy, her condition was shown to be an interstitial pregnancy. The surgery was converted to laparotomy because of her hemodynamic instability. Cornual resection with ipsilateral salpingectomy were performed. Results: The patient was discharged on postoperative day 4. Histopathology testing confirmed that she had a left, interstitial, tubal ectopic pregnancy. Conclusions: Early diagnosis is a key element in appropriate management. Medical and conservative surgical methods are safe and effective. Selection of a treatment option must be individualized and based upon proper patient counseling, clinical presentation, hemodynamic status, future pregnancy desires, and surgeon expertise.