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Dermatopolymyositis is a family of myositis disorders that includes polymyositis and dermatomyositis. As such, it includes both a distinctive skin rash and progressive muscular weakness. As such, it includes both a distinctive skin rash and progressive muscular weakness.
Diagnosis is typically based on some combination of symptoms, blood tests, electromyography, and muscle biopsies. [2] Eighty percent of adults [5] and sixty percent of children with juvenile dermatomyositis have a myositis-specific antibody (MSA). [6] Although no cure for the condition is known, treatments generally improve symptoms. [1]
Polymyositis and the associated inflammatory myopathies have an associated increased risk of cancer. [3] The features they found associated with an increased risk of cancer were older age, age greater than 45, male sex, difficulty swallowing, death of skin cells, cutaneous vasculitis, rapid onset of myositis (<4 weeks), elevated creatine kinase, higher erythrocyte sedimentation rate and higher ...
IBM is often confused with (misdiagnosed as) polymyositis. Polymyositis that does not respond to treatment is likely IBM. [35] Dermatomyositis shares a number of similar physical symptoms and histopathological traits as polymyositis, but exhibits a skin rash not seen in polymyositis or sIBM. It may have different root causes unrelated to either ...
Inflammatory myopathy, also known as idiopathic inflammatory myopathy (IIM), is disease featuring muscle weakness, inflammation of muscles , and in some types, muscle pain . The cause of much inflammatory myopathy is unknown ( idiopathic ), and such cases are classified according to their symptoms and signs , electromyography , MRI , and ...
Juvenile dermatomyositis (JDM) is an idiopathic inflammatory myopathy (IMM) of presumed autoimmune dysfunction resulting in muscle weakness among other complications. It manifests itself in children; it is the pediatric counterpart of dermatomyositis.
Treatment for myositis depends on the underlying cause. [4] For myositis, which is caused by a viral infection, no treatment is typically needed. [4] For myositis caused by a bacterial infection, antibiotics can be used. [4] For myositis caused by a medication, it is important to stop using that medication. [4]
Statins induce myopathy by inhibiting protein synthesis within the muscle. [6] Statin therapy tends to not show any histopathological differences, and thus a biopsy does not reveal too much about the damage. Often, the damage is found within the mitochondria. [1] Colchicine is commonly prescribed for gout treatment.