Selcen type muscular dystrophy is characterized by progressive limb and axial muscle weakness associated with cardiomyopathy and severe respiratory insufficiency during adolescence. The disease manifests during childhood and progresses rapidly. The disease is myofibrillar myopathy 6 (MONDO_0013061). Also known as: BAG3 myofibrillar myopathy (disease), myofibrillar myopathy (disease) caused by mutation in BAG3, myofibrillar myopathy type 6, myopathy, myofibrillar, type 6.