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).
Polymyositis is an inflammatory muscle disease causing weakness and pain.
Dermatomyositis is identical to polymyositis with the addition of a characteristic skin rash.
The prefix is poly-. This prefix means many.
Yes they can, but it may be difficult to diagnose.
Interference
Interference - If intermittent and difficult-to-diagnose wireless communication errors occur, interference might be the culprit.
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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.
Interference.
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.