Inflammatory Myopathies Flashcards

1
Q

biopsy poly/dermatomyositis vs inclusion body myositis

A

poly/dermatomyositis = necrosis of type 1 and 2 fibers.

inclusion body myositis = eosinophilic inclusion bodies

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2
Q

muscle weakness distribution of poly/dermatomyositis vs inclusion body myositis

A

poly/dermatomyositis weakness is proximal and symmetric.

inclusion body myositis weakness is proximal and distal and asymmetric.

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3
Q

2 types of inflammatory myopathies

A

polymyositis/dermatomyositis and inclusion body myositis

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4
Q

NCS of poly/dermatomyositis vs inclusion body myositis

A

poly/dermatomyositis = normal SNAP and CMAP

inclusion body myositis = abnormal SNAP and CMAP

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5
Q

gottron’s sign

A

red purple patches over knucles, knees and elbows seen in dermatomyositis

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6
Q

treatment of poly/dermatomyositis vs inclusion body myositis

A

poly/dermatomyositis = IVIg, steroids, plasmapheresis

inclusion body myositis = no treatment except for rehab

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7
Q

etiology of inflammatory myopathies

A

poly/dermatomyositis is autoimmune/infection/cancer and inclusion body myositis is unknown

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8
Q

which inflammatory myopathy is associated with polyneuropathy

A

inclusion body myositis

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