ABSTRACT
[Summary] From February 2008 to June 2008, two cases of old ectopic pregnancy were misdiagnosed: Case 1 was misdiagnosed as gestational trophoblastic disease (GTD), and Case 2 was misdiagnosed as cornual pregnancy.In order to further confirm the diagnosis, two cases were all given laparoscopic exploration.Surgery confirmed interstitial chronic ectopic pregnancy, leading to a resection of the fallopian tubes and mass lesions.Embryo tissue was pathologically confirmed postoperatively.The diagnosis of old ectopic pregnancy is difficult.Serum hCG determination is often found no positive, and ultrasound examination has no specificity.The clinical images are varied.Detailed medical history inquiry and attention to differential diagnosis are key for the diagnosis of old ectopic pregnancy.