Myositis overlap syndromes refer to conditions which include myositis in the presence of or in the development of other autoimmune diseases such as systemic sclerosis, SLE, RA and idiopathic interstitial lung disease.
Symptoms
Trouble rising from a chair
Difficulty climbing stairs or lifting arms
Tired feeling after standing or walking
Trouble swallowing or breathing
Muscle pain and soreness that does not resolve after a few weeks
Known elevations in muscle enzymes by blood tests (CPK or aldolase)