X-linked myopathy with postural muscle atrophy is a rare progressive muscular dystrophy characterized by an adult-onset scapulo-axio-peroneal myopathy. Clinical presentation includes shoulder girdle atrophy, scapular winging, axial muscular atrophy of postural muscles combined with a generalized hypertrophy. Typically, neck rigidity, rigid spine, Achilles tendon shortening, and respiratory insufficiency later in disease course are present. The disease is MONDO_0010401 (X-linked myopathy with postural muscle atrophy). Also known as: XMPMA, myopathy, X-linked, with postural muscle atrophy, X-linked recessive.