Disorders characterized by an abnormal reduction in muscle volume due to a decrease in the size or number of muscle fibers. Atrophy may result from diseases intrinsic to muscle tissue (e.g., MUSCULAR DYSTROPHY) or secondary to PERIPHERAL NERVOUS SYSTEM DISEASES that impair innervation to muscle tissue (e.g., MUSCULAR ATROPHY, SPINAL).
Also Known As:
Muscular Disorders, Atrophic; Spinopontine Atrophy; Atrophic Muscular Disorder; Atrophies, Disuse; Atrophies, Spinopontine; Disorder, Atrophic Muscular; Disorders, Atrophic Muscular; Disuse Atrophies; Disuse Atrophy; Muscular Disorder, Atrophic; Spinopontine Atrophies; Atrophy, Disuse; Atrophy, Spinopontine