Slowly progressing muscle weakness, usually symmetrical between the two sides of the body. Weakness of the muscles used for swallowing can cause difficulty. Joint pain and/or swelling also may be present.
In polymyositis, symptoms include muscle weakness, particularly in the shoulders or pelvis, that prevents the patient from performing everyday activities
The life span usually is not significantly affected. About half of the patients recover and can discontinue treatment within five years of the onset of their symptoms.
Dermatomyositis is identical to polymyositis with the addition of a characteristic skin rash.
Polymyositis is an inflammatory muscle disease causing weakness and pain.
The prefix for the word polymyositis is "poly-," which means many or much.
Often difficult to diagnose, because it is rare, because symptoms come on slowly, and because it can be mistaken for other diseases that cause muscle weakness (limb girdle muscular dystrophy).
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polymyositis
Polymyositis is a weakness that occurs in the neck muscles causing them to become limp. It also leads to swelling and muscle pain, general fatigue and soreness in the back.
A progressive condition, usually beginning in adulthood.
Myositis is a general term for inflammation of the muscles. There can be several causes. The most common being polymyositis and dermatomyositis.
It causes muscles to exhibit varying degrees of decreased strength, usually affecting those muscles that are closest to the trunk of the body. Trouble with swallowing (dysphagia) may occur with polymyositis.