A case of primary ovarian pregnancy.

This report describes a 40-year-old woman with primary ovarian pregnancy which was mistaken clinically and grossly for germ cell tumor of the ovary, since it was associated with a high level of serum alpha-fetoprotein (278 ng/ml) and with excretion of urinary hCG (1 000 IU/l). The ovarian mass measured 10 X 10 X 11 cm, and weighed 215 g. Total hysterectomy and bilateral salpingo-oophorectomy were performed. The bisected specimen revealed a centrally located macerated fetus with a crown - rump length of 3.5 cm.