Inflammatory Myopathies Flashcards
biopsy poly/dermatomyositis vs inclusion body myositis
poly/dermatomyositis = necrosis of type 1 and 2 fibers.
inclusion body myositis = eosinophilic inclusion bodies
muscle weakness distribution of poly/dermatomyositis vs inclusion body myositis
poly/dermatomyositis weakness is proximal and symmetric.
inclusion body myositis weakness is proximal and distal and asymmetric.
2 types of inflammatory myopathies
polymyositis/dermatomyositis and inclusion body myositis
NCS of poly/dermatomyositis vs inclusion body myositis
poly/dermatomyositis = normal SNAP and CMAP
inclusion body myositis = abnormal SNAP and CMAP
gottron’s sign
red purple patches over knucles, knees and elbows seen in dermatomyositis
treatment of poly/dermatomyositis vs inclusion body myositis
poly/dermatomyositis = IVIg, steroids, plasmapheresis
inclusion body myositis = no treatment except for rehab
etiology of inflammatory myopathies
poly/dermatomyositis is autoimmune/infection/cancer and inclusion body myositis is unknown
which inflammatory myopathy is associated with polyneuropathy
inclusion body myositis