A muscle biopsy in dermatomyositis shows inflammatory cells that are surrounding and damaging blood vessels in the muscle. A skin biopsy is done to identify dermatomyositis as well as to rule out systemic lupus erythematosus.
Dermatomyositis other diagnostic studies
Polymyositis and dermatomyositis other diagnostic studies
Polymyositis and dermatomyositis risk factors
Polymyositis and dermatomyositis differential diagnosis
Polymyositis and dermatomyositis diagnostic study of choice
Dermatomyositis causes
Multiple sclerosis other diagnostic studies
Polymyalgia rheumatica other diagnostic studies