A 32-year infertile Japanese woman suffered from endometrial cancer, which was treated with repeated endometrial curettage and medroxyprogesterone acetate for 6 months. The patient then became pregnant and was delivered of a live-born male infant at 37 weeks gestation by cesarean section for placenta previa. At cesarean section there were no abnormal findings in the uterine cavity or other pelvic organs.