Detection of the fetus in the cul-de-sac by transabdominal and transvaginal ultrasound. A case report.

The most common reason for a fetus in the cul-de-sac is ectopic pregnancy, such as rupture of tubal pregnancy, ovarian pregnancy, and intraabdominal pregnancy (1-3). A case of the fetus in the cul-de-sac complicated by uterine perforation was imaged transabdominally and transvaginally on September 13, 1990.