Myopathies

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Overview

Myopathies are diseases that affect muscles connected to bones (called skeletal muscles), such as the biceps in the upper arm and the quadriceps in the thigh. Myopathies can be caused by inherited genetic defects (e.g., muscular dystrophies), and endocrine, inflammatory (e.g., polymyositis), and metabolic disorders.


Nearly all of the myopathies produce weakening and atrophy of skeletal muscles, especially those closest to the center of the body (called the proximal muscles), s...Read the full article