NCIt definition : A rare syndrome that is inherited in an autosomal dominant or recessive pattern and
caused by mutations in the MYH3 gene. It is a severe form of arthrogryposis. It is
characterized by the presence of distinctive facial features (small mouth, midface
hypoplasia, short nose, drooping of the eyelids, deep folds in the area between the
nose and the lips, and strabismus), joint deformities that lead to permanently bent
fingers and toes, club foot, scoliosis, and walking difficulties.;