Source:http://linkedlifedata.com/resource/umls/id/C0334529
NCI: A hydatidiform mole characterized by the presence of two populations of chorionic villi: one population which is of normal size and a second one which shows hydropic changes.,MSH: Derived from the fertilization of an apparently normal ovum by two sperm. Partial hydatidiform moles are characterized by focal chorionic villi swelling, focal trophoblastic hyperplasia, and identifiable fetal or embryonic tissue. Partial moles generally have a triploid karyotype.