Gestational trophoblastic disease occurs rarely in postmenopausal women. We report the case of a 51 year-old postmenopausal woman with an invasive complete mole. Invasive mole should be distinguished from choriocarcinoma, by a thorough sampling showing infiltrative molar villi associated with a prominent trophoblastic proliferation. Gestational trophoblastic diseases in postmenopausal women can represent malignant changes of trophoblastic remnants of a prior pregnancy after a period of latency or correspond to a possible current pregnancy as demonstrated by an ovarian corpus luteum of pregnancy in our patient. The unusual finding in our case is that the gestational trophoblastic disease follows a pregnancy occurring after a biologically confirmed menopause.