[Ultrasonic diagnosis and laparoscopic treatment of an ovarian pregnancy. A case report and review of the literature]

Ovarian pregnancy is an uncommon type of ectopic pregnancy. Incidence has been estimated at 1 per 7 000 pregnancies and 1 to 6% of ectopic pregnancies. Pathogenesis is different from tubal pregnancy. Generally it occurs as a single event in an otherwise healthy woman. Early diagnosis of ectopic pregnancy is essential and is now possible with the advent of endovaginal sonography associated with serum beta-hCG assay. There are various forms of ectopic pregnancies. Macroscopically, 4 forms can be distinguished: hematoma, clar ovum, embryonnized ovum, and placenta with fetus. Histology alone can confirm the diagnosis and distinguish between the 4 forms: intrafollicular, justafollicular, justacortical and interstitial pregnancy. For many authors, laparotomy is required in all cases, but in any case, the ovary can generally be preserved as implantation is usually superficial. We describe here a case of ovarian pregnancy after stimulated ovulation. Early diagnosis with correct localization was achieved with endovaginal sonography. Conservative treatment with laparoscopy was successful.