Partial Hydatidiform Mole


D efinition Gestational trophoblastic disease in which the conceptus contains a triploid (3n) amount of genetic material (typically 1n maternal and 2n paternal).

Clinical Features

Epidemiology

  • Partial moles are 10 times more common than complete moles.

  • The risk factors for partial molar pregnancy are the same as for complete molar pregnancy and include age greater than 40 and less than 20, Asian descent, low socioeconomic status, prior molar pregnancies, and nulliparity.

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