Urohemoperitoneum during pregnancy with consequent fetal death in a patient with deep endometriosis.

A 25-year-old woman with unoperated deep endometriosis of the uterosacral ligament suddenly experienced severe abdominal pain, hematuria, hemoperitoneum, and intrauterine death at 31 weeks' gestation. Surgical intervention revealed active hemorrhage arising from right uterine artery and interruption of the ureter in an area of previously documented but not treated endometriotic nodule. Histologic examination confirmed presence of decidualized endometriosis at this site. Urohemoperitoneum during pregnancy is a rare but possible complication in women carrying deep peritoneal endometriotic nodules.