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.
- 1. Monga M, Schumacher V, Wicklund CA et-al. Ultrasound diagnosis of coexisting molar pregnancy following referral for abnormal serum screen. Am J Perinatol. 2005;22 (1): 53-5. doi:10.1055/s-2004-837270 - Pubmed citation
- 2. Chen FP. Molar pregnancy and living normal fetus coexisting until term: prenatal biochemical and sonographic diagnosis. Hum. Reprod. 1997;12 (4): 853-6. doi:10.1093/humrep/12.4.853 - Pubmed citation