Tubal pregnancy following late luteal vaginal hysterectomy

A patient who had a vaginal hysterectomy performed on day 24-25 of her cycle by histological dating was found to have a ruptured left tubal pregnancy 55 days later. The patient used barrier contraception up to the time of hysterectomy, and an undetectable level of beta-HCG was noted the week prior to hysterectomy. The likelihood of delayed tubal implantation having occurred in the same luteal phase as the hysterectomy distinguishes this case from the 27 others previously reported, which are briefly reviewed.