What are the risks of coexistent fetus and hydatidiform mole?

Updated: Feb 16, 2018
  • Author: Lisa E Moore, MD, FACOG; Chief Editor: Warner K Huh, MD  more...
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Twinning with a complete mole and a fetus with a normal placenta has been reported (see image below). Cases of healthy infants in these circumstances have been reported. [11, 35]

Women with coexistent molar and normal gestations are at higher risk for developing persistent disease and metastasis. [19]  Termination of pregnancy is a recommended option.

The pregnancy may be continued as long as the maternal status is stable, without hemorrhage, thyrotoxicosis, or severe hypertension. The patient should be informed of the risk of severe maternal morbidity from these complications. [36]

Prenatal genetic diagnosis by chorionic villus sampling or amniocentesis is recommended to evaluate the karyotype of the fetus.

Twin gestation. Complete mole and normal twin. Twin gestation. Complete mole and normal twin.

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