This gene is also related to X-linked infantile cardiomyopathy, X-linked endocardial fibroelastosis, and isolated NCM.4,6 In addition, a mutation has been identified in the gene that codes for α-dystrobrevin or dystrophin as the cause of NCM that is associated with congenital cardiac disease, and in genes responsible for the limited transcription factors for most of the cardiac and mitochondrial mutations. This evidence concerns the gene DMD and neurocutaneous melanocytosis.