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Distal muscular dystrophy, also called distal myopathy, is essentially any muscle disease that preferentially affects the hands and/or feet, a much less common pattern than proximal muscle weakness. Late adult-onset type 1; Late adult-onset type 2a; Late adult-onset type 2b; Early adult-onset type 1; Early adult-onset type 2; Early adult-onset ...
Idiopathic primary BSS is a late-onset myopathy with progressive muscular weakness that is detected on the spinal extensor muscles in elderly patients and is more predominant in females. [2] The pathogenesis of primary BSS is typically related to fibrosis and fatty infiltration of muscular tissues and to mitochondrial changes due to the aging ...
Myopathies in systemic disease results from several different disease processes including endocrine, inflammatory, paraneoplastic, infectious, drug- and toxin-induced, critical illness myopathy, metabolic, collagen related, [3] and myopathies with other systemic disorders. Patients with systemic myopathies often present acutely or sub
Congenital nemaline myopathy (neuromuscular disorder) Specialty: Neurology, neuromuscular medicine, physical medicine and rehabilitation: Causes: Autoimmune disorders, [1] genetic disorders, [2] environmental factors [3] Diagnostic method: Muscle electrophysiology tests, genetic testing: Treatment: Depends on the disorder; many currently have ...
Statin-associated autoimmune myopathy (SAAM), also known as anti-HMGCR myopathy, is a very rare form of muscle damage caused by the immune system in people who take statin medications. [1] However, there are cases of SAAM in patients who have not taken statin medication, and this can be explained by the exposure to natural sources of statin ...
There is an ultra-rare adult-onset, limb–girdle phenotype that presents very late in life (70+ years of age) due to a recessive homozygous PYGM mutation (p. Lys42Profs*48) resulting in severe upper and lower limb atrophy, with the possibility of ptosis (drooping eyelids) and camptocormia (stooped posture). [ 9 ]
Werdnig-Hoffmann disease should not be confused with Hoffmann syndrome, which is a type of adult-onset hypothyroid myopathy.) [18] The eponymous term Kugelberg–Welander disease named after Erik Klas Hendrik Kugelberg (1913–1983) and Lisa Welander (1909–2001), who first documented the late-onset form and distinguished it from muscular ...
The age of onset typically ranges from early childhood to late adulthood. [1] In addition, patients of Danon disease also experience cardiomyopathy, arrhythmia, and skeletal myopathy. [1] Men may also have varying degrees of intellectual disability with additional symptoms being retinal, liver and pulmonary disease. [1]