Decoding the Genetics of Recurrent Molar Pregnancy

J Hum Reprod Sci. 2024 Jan-Mar;17(1):61-64. doi: 10.4103/jhrs.jhrs_121_23. Epub 2024 Mar 28.

Abstract

Hydatidiform mole is a condition characterised by abnormal trophoblastic hyperplasia and failure of embryonic tissue development. The risk of recurrence is seen to be associated with biallelic maternal mutations in NLRP7, KHDC3 L and PAD16 genes. Women with such mutations have a major risk of reproductive failure and normal pregnancy is seen in only 1.8%. We report the case of a 31-year-old woman with previous three molar pregnancies who on genetic testing was found to be compound heterozygous for pathogenic variants in the NLRP7 gene (c.2738A>G and c.2078G>C). Accordingly, the woman was counselled regarding assisted reproduction with oocyte donation for a normal pregnancy outcome. At present, the patient has an ongoing 5-month pregnancy through oocyte donation.

Keywords: Familial recurrent hydatidiform mole; NLRP7; genomic imprinting; hydatidiform mole; recurrent molar; trophoblastic diseases.

Publication types

  • Case Reports