Primary Ovarian Pregnancy Detected Ultrasonographically and Solved Laparoscopically

Abstract

A 28-year-old woman was admitted with a serum hCG level of 896 mIU/mL on cycle day 56. Transvaginal sonography revealed an empty uterus, and a 25mm ring-like thick-walled hyperechoic structure within the right ovary. The echoic ring was surrounded by irregular, hypoechoic structures suggestive of an ovarian pregnancy with periluteal hemorrhage and blood clots. The ruptured cystic ovarian pregnancy and the corpus luteum were removed laparoscopically. Microscopic examination showed isolated chorionic villi within hemorrhagic areas in the vicinity of the corpus luteum.