Recurrent Hydatidiform Mole, also known as recurrent gestational trophoblastic tumor, is related to hydatidiform mole, recurrent, 2 and hydatidiform mole, recurrent, 1. An important gene associated with Recurrent Hydatidiform Mole is NLRP7 (NLR Family Pyrin Domain Containing 7). Affiliated tissues include placenta and uterus.