MC2R and Aarskog-Scott syndrome, X-linked: FGD is a genetically heterogeneous disorder consisting of more than two subtypes including FGD type 1 (OMIM 607397) caused by mutations in the MC2R gene which constitutes about 25% of FGD cases, and FGD type 2 (OMIM 609196) consisting the mutations in MC2R accessory protein (MRAP gene), accounting for 20% of patients [6].