Muscular Dystrophy, Facioscapulohumeral

**Definition:** An autosomal dominant degenerative muscle disease characterized by slowly progressive weakness of the muscles of the face, upper-arm, and shoulder girdle. The onset of symptoms usually occurs in the first or second decade of life. Affected individuals usually present with impairment of upper extremity elevation. This tends to be followed by facial weakness, primarily involving the orbicularis oris and orbicularis oculi muscles. (Neuromuscul Disord 1997;7(1):55-62; Adams et al., Principles of Neurology, 6th ed, p1420)

**Tree numbers:** - C05.651.534.500.400 - C10.668.491.175.500.400 - C16.320.577.400

**Synonyms:** - Facioscapulohumeral Atrophy - Facioscapulohumeral Muscular Dystrophy - Facioscapulohumeral Type Progressive Muscular Dystrophy - Facioscapuloperoneal Muscular Dystrophy - Facio-Scapulo-Humeral Dystrophy - Landouzy-Dejerine Dystrophy - Muscular Dystrophy, Landouzy Dejerine - Progressive Muscular Dystrophy, Facioscapulohumeral Type - FSH Muscular Dystrophy