Polymyositis is a systemic disease, which means it affects the whole body. Symptoms include:
Patients may also have:
A similar condition called dermatomyositis causes a reddish-purple or red rash on the face or body.
Muscle weakness and tenderness can be signs of polymyositis. A rash is a sign of a similar condition, dermatomyositis.
Tests may include:
Patients with this condition must be carefully monitored for cancer.
Harris ED, Budd RC, Genovese MC, Firestein GS, Sargent JS, Sledge CB. Kelley's Textbook of Rheumatology. 7th ed. St. Louis, Mo: WB Saunders; 2005:1312-1316.
Goldman L, Ausiello D. Goldman: Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders; 2007.
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