Arthrogryposis Multiplex Congenita 3, Myogenic Type, also known as arthrogryposis multiplex congenita, myogenic type, is related to rheumatoid arthritis and keratitis, hereditary. An important gene associated with Arthrogryposis Multiplex Congenita 3, Myogenic Type is SYNE1 (Spectrin Repeat Containing Nuclear Envelope Protein 1). Affiliated tissues include skeletal muscle and lung, and related phenotypes are motor delay and decreased fetal movement