Massive hemoperitoneum from endometriosis of the fallopian tube. A case report

BACKGROUND: Endometriosis is a common gynecologic disease that usually presents with pelvic pain and infertility in the reproductive years. It can be complicated by bleeding, such as hematuria or hemoptysis; however, acute massive hemoperitoneum caused by tubal endometriosis without any concomitant disorder has not been reported previously. CASE: An unusual case of massive hemoperitoneum led to preshock as a result of bleeding from a tubal endometriosis implant in a previously healthy 29-year-old woman without previous history suggesting endometriosis. CONCLUSION: Although the most common gynecologic cause of hemoperitoneum in a reproductive-age woman is ruptured ectopic pregnancy, endometriosis should also be considered, especially after exclusion of pregnancy.