Muscular atrophy affecting muscles in the distal portions of the extremities. The phenotype is Distal amyotrophy (Human Phenotype Ontology term HP_0003693). Also known as: Amyotrophy of distal limb muscles, Distal amyotrophy, especially of the hands and feet, Distal limb muscle atrophy, Distal muscle atrophy, Distal muscle atrophy, upper and lower limbs, Distal muscle degeneration, Distal muscle wasting, Distal muscular atrophy.