Myosin storage myopathy is a condition that causes muscle weakness (myopathy) that does not worsen or worsens very slowly over time. This condition is characterized by the formation of protein clumps, which contain a protein called myosin, within certain muscle fibers. The signs and symptoms of myosin storage myopathy usually become noticeable in childhood, although they can occur later. Because of muscle weakness, affected individuals may start walking later than usual and have a waddling gait, trouble climbing stairs, and difficulty lifting the arms above shoulder level. Muscle weakness also causes some affected individuals to have trouble breathing.
HOW IS MYOSIN STORAGE MYOPATHY DIAGNOSED?
General physician may look for a medical history along with physical exam, and laboratory test results in order to make a diagnosis. Genetic testing is essential for definitive diagnosis.
HOW IS MYOSIN STORAGE MYOPATHY TREATED?
There is no specific treatment available for Myosin Storage Myopathy, but supportive treatment can be followed to relieve symptoms. Treatment for Myosin Storage Myopathy aims at maintaining muscle activity and prolonging life expectancy of the affected person
DID YOU KNOW?
Myosin storage myopathy, also known as hyaline body myopathy, is a congenital myopathy characterized by the accumulation of ATPase and antibody positive myosin in hyaline subsarcolemmal bodies in type I muscle fibers