Facioscapulohumeral Muscular Dystrophy (Landouzy-Dejerine Muscular Dystrophy) By Michael Rubin, MDCM, New York Presbyterian Hospital-Cornell Medical Center Reviewed / Revised Jan 2022 | Modified Sep 2022 View Patient Education Symptoms and Signs Diagnosis Treatment More Information Facioscapulohumeral muscular dystrophy is the most prevalent type of muscular dystrophy.