partial mole



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  • Karyotype

    • triploid
    • two sperm fertilizing one egg

  • Histology

    • biphasic villi: normal and hydropic
    • minimal trophoblastic hyperplasia
    • enlarged cavitated villi
    • villi with scalloped borders
    • can contain fetal tissue, chorionic sac, amnion, umbilical cord

  • Stains

    • p57+

  • Ddx

    		•