Definition of dermatomyositis
: an inflammatory disease of skin and muscle marked especially by muscular weakness and skin rash
Origin and Etymology of dermatomyositis
First Known Use: circa 1899
Medical Definition of dermatomyositis
: polymyositis that is accompanied by involvement of the skin and that is typically marked by reddish erythematous eruptions especially on the face, neck, upper trunk and distal half of the limbs, by periorbital edema, by violet-colored erythema of the eyelids and region over the upper eyelids, and sometimes by cutaneous vasculitis or subcutaneous calcification <The specific trigger for dermatomyositis is not known, but it is thought that several cancers can produce or incite the body to produce antibodies, proteins, and hormones.—Stewart Massad, Discover, October 2009>—abbreviation DM
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