A case of ovarian pregnancy.

Ovarian pregnancy is an uncommon event, the cause of which is unknown. The use of the intrauterine device (IUD) has increased the incidence of ovarian pregnancy. This is due to the decreasing contraceptive effect of the IUD on the fallopian tube and the ovary. This case satisfies the four criteria of Spiegelberg. It also demonstrates the advantages of laparoscopy and ultrasonography in patients with obscure pelvic pain.