Emery Dreifuss Muscular Dystrophy

Emery-Dreifuss muscular dystrophy (EDMD) is a rare, often slowly progressive genetic disorder affecting the muscles of the arms, legs, face, neck, spine and heart. The disorder consists of the clinical triad of weakness and degeneration (atrophy) of certain muscles, joints that are fixed in a flexed or extended position (contractures), and abnormalities affecting the heart (cardiomyopathy). Major symptoms may include muscle wasting and weakness particularly in arms and lower legs (humeroperoneal regions) and contractures of the elbows, Achilles tendons, and upper back muscles.

Reference: Rare Diseases (NORD)