[Ovarian pregnancy: the situation in 2003. A report of four cases and literature review].

Ovarian pregnancy remains a rare form of extracitérine pregnancy. It's incidence is estimated at 1 to 6% of ectopic pregnancies. We report 4 cases of ovarian pregnancies diagnosed at the obstetric and gynecology department of Nabeul Hôspital (Tunisia) during a 4 year period. An update on ovarian pregnancy based on these 4 cases and a literature review is provided. In contrast to tubal pregnancy, ovarian pregnancy occurs as a single event in an otherwise healthy woman. There is no specific clinical, laboratory test or ultrasonographic signs for differentiating ovarian from tubal pregnancy. At laparoscopy, it frequently suggest haemorrhage from the corpus luteum or a rupture of ovarian cyst. Histology is the only means of establishing the diagnosés. Ovarian pregnancy rupture is often more dangerous than tubal pregnancy, but conservative treatment is often possible. Recurrency is exceptional and future fertility usually is unmodified.