Cellosaurus Disease Terminology SMCHD1 Gene LRIF1 Gene DNMT3B Gene Facioscapulohumeral Muscular Dystrophy C0238288 Facioscapulohumeral Muscular Dystrophy 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. Cellosaurus C84704 Disease or Syndrome Facioscapulohumeral Muscular Dystrophy Muscular Dystrophy DUX4 Gene