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hydatiform mole: types

(Science: radiology) Complete/classical mole, fertilization of an empty egg; diploid karyotype (paternal XX), no foetal parts; no chorionic membrane, 20% malignant complete mole with coexistent foetus (2%), molar degeneration of an identical Twin partial mole, areas of molar change alternating with normal chorionic villi, triploid karyotype (66% XXY; 33% XXX), early onset of preeclampsia, foetal structures present (e.g., placenta), no malignant potential see: hydatiform mole