An autosomal dominant disorder affecting the skeletal muscles of the face, scapula, and upper arm. Patients present with muscle weakness in these anatomic areas. The muscle weakness eventually spreads to other skeletal muscles as well. The disease is MONDO_0001347 (facioscapulohumeral muscular dystrophy). Also known as: FSH dystrophy, FSHD, facioscapulohumeral dystrophy, facioscapulohumeral myopathy.