"T2/STIR: affected regions during active disease have high signal intensity, reflecting muscle oedema"
"collagen vascular diseases (e.g. systemic lupus erythematosus, Sjögren disease, and rheumatoid arthritis)"
"Polymyositis is an increasingly rare diagnosis. With advances in medical science, many patients previously diagnosed with polymyositis are being reclassified as having other inflammatory myopathies, such as immune-mediated necrotising myopathy, inclusion body myositis, or anti-synthetase syndrome 5. There is conjecture among experts in the literature as to whether polymyositis still exists as a clinical entity, but if it does, it is likely very rare 5."
"There are several forms of the disease. The most common form affects those in their fourth decade. There is a recognised female predilection (F:M = ~2:1)."
"There are several forms of the disease. The most common form affects those in their fourth decade. There is a recognised female predilection (F:M = ~2:1)."
"collagen vascular diseases (e.g. systemic lupus erythematosus, Sjögren disease, and rheumatoid arthritis)"
"drug-induced myositis (e.g. statins, antiretroviral drugs (e.g. d-drugs) used in HIV treatment, checkpoint inhibitors)"
"muscular dystrophy (e.g. Duchenne)"