Dermatomyositis is a muscle disease characterized by inflammation and a skin rash. It is a type of inflammatory myopathy.
The cause of dermatomyositis is unknown. Experts think it may be due to a viral infection of the muscles or a problem with the body's immune system. It can also sometimes occur in patients who have cancer of the abdomen, lung or other body area.
Anyone can develop dermatomyositis, but it most commonly occurs in children age 5 - 15...Read more