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Inflammatory myopathy: Difference between revisions
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In most types of myositis there is proximal weakness, atrophy, and muscle pain. The only exception is inclusion body myositis, in which there is distal muscle weakness. IBM affects elderly. | In most types of myositis there is proximal weakness, atrophy, and muscle pain. The only exception is inclusion body myositis, in which there is distal muscle weakness. IBM affects elderly. | ||
In dermatomyositis there are also skin symptoms, namely heliotrope rash and Gottron papules. Polymyositis is like dermatomyositis but without skin symptoms. Necrotising myositis is similar to them but worse. | In dermatomyositis there are also skin symptoms, namely heliotrope rash (erythematous/purple rash of periorbital area) and Gottron papules (erythematous papules on knuckles) and shawl erythema (erythema of neck and upper trunk). Polymyositis is like dermatomyositis but without skin symptoms. Necrotising myositis is similar to them but worse. | ||
== Diagnosis and evaluation == | == Diagnosis and evaluation == | ||
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EMG can differentiate between neurogenic and myopathic problems. | EMG can differentiate between neurogenic and myopathic problems. | ||
In dermatomyositis and necrotising myositis it’s important to rule out adenocarcinoma. | In dermatomyositis and necrotising myositis it’s important to rule out adenocarcinoma.<section begin="dermatology" /> | ||
<section begin="dermatology" /> | |||
== Treatment == | == Treatment == | ||
The treatment is usually immunosuppressants, usually steroids + azathioprine or methotrexate.<section end="dermatology" /> Immunosuppressants is not effective for IBM, however.<section end="neurology" /> | The treatment is usually immunosuppressants, usually steroids + azathioprine or methotrexate.<section end="dermatology" /> Immunosuppressants is not effective for IBM, however.<section end="neurology" /> | ||
[[Category:Rheumatology]] | [[Category:Rheumatology]] | ||