Obstetrics outcomes after complete and partial molar pregnancy: review of the literature and meta-analysis

The hydatidiform mole, also known as molar pregnancy, is a rare gynecological disease rising from the trophoblastic tissue with a ranging incidence of 0.6 to 11.5 per 1000 deliveries worldwide [1,2]. Two forms of molar pregnancy can be distinguished: (1) the complete hydatidiform mole (CHM) occurs when an enucleated egg is fertilized by two spermatozoa or one haploid duplicating spermatozoon; (2) the partial hydatidiform mole (PHM) occurs when a haploid egg is fertilized by two spermatozoa or one haploid duplicating spermatozoon [3].