Coexistent molar pregnancy

Last revised by Dr Alexandra Stanislavsky on 11 Jul 2018

Coexistent molar pregnancy refers to an extremely rare situation where there is a molar pregnancy occurring simultaneously with normal intra-uterine pregnancy.


The estimated incidence is at ~1:10,000-100,000 gestations (for a complete hydatidiform mole and a normal pregnancy) 2.

Treatment and prognosis 

Most cases suffer severe complications, such as pre-eclampsia, abortion, and preterm delivery, or termination immediately after diagnosis. 

See also

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Cases and figures

  • Case 1
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