Rupture of ectopic pregnancy implanted in the bladder.

A 34-year-old woman was diagnosed by ultrasound with a six-week ectopic pregnancy with implantation of the gestational sac in the bladder wall. She was initially treated with methotrexate 50 mg/m(2) i.m. Although a 22% reduction in the levels of beta-hCG was observed at first, there was a rupture of gestational sac. The patient underwent an emergency laparotomy with a resulting partial cystectomy, and made an uneventful recovery.