Cardiofaciocutaneous Syndrome 4, also known as cfc4, is related to facioscapulohumeral muscular dystrophy 1. An important gene associated with Cardiofaciocutaneous Syndrome 4 is MAP2K2 (Mitogen-Activated Protein Kinase Kinase 2). Affiliated tissues include heart and skin, and related phenotypes are scoliosis and ptosis