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PROXIMAL MYOPATHY |
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PAINFUL: |
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osteomalacia polymyositis / dermatomyositis Trichinella spiralis infection cysticercosis McArdle's disease (type IV glycogen storage disease) HIV infection |
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drugs: |
alcohol chloroquine vincristine pentazocine and heroin b -blockers |
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PAINLESS: |
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endocrine / metabolic disease: |
thyrotoxicosis hypothyroidism Cushing's syndrome acromegaly familial periodic paralysis (usually hypokalaemic) |
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hereditary muscular dystrophies: |
Duchenne / Becker limb girdle facioscapulohumeral mitochondrial myopathies |
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myotonia: |
myotonia congenita (Thomsen's disease)dystrophia myotonica (myotonic dystrophy) |
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connective tissue diseases: |
polymyalgia rheumatica polyarteritis nodosa systemic lupus erythematosus scleroderma |
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other: |
paraneoplastic syndrome |
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