Lethal Congenital Contracture Syndrome 2, also known as lccs2, is related to lethal congenital contracture syndrome 3 and myasthenic syndrome, congenital, 4b, fast-channel. An important gene associated with Lethal Congenital Contracture Syndrome 2 is ERBB3 (Erb-B2 Receptor Tyrosine Kinase 3). Affiliated tissues include skeletal muscle and spinal cord, and related phenotypes are dilated cardiomyopathy and ventricular septal defect