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Dermatomyositis is identical to polymyositis with the addition of a characteristic skin rash.

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Q: Why is polymyositis similar to dermatomyositis?
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Related questions

Which disorders are classified as subtypes of inflammatory myopathy?

The IMs include dermatomyositis, polymyositis, and inclusion body myositis.


What is dermatomyosistis?

Dermatomyositis(DM) is a connective-tissue disease related to polymyositis(PM) that is characterized by inflammation of the muscles and the skin.


What medical term means a disease characterized by the simultaneous inflammation of voluntary muscles in many parts of the body?

Myositis is a general term for inflammation of the muscles. There can be several causes. The most common being polymyositis and dermatomyositis.


Common ailments of muscular system?

Muscular Dystrophy, Cerebral Palsy,Fibrodysplasia Ossificans Progressiva, Dermatomyositis,Compartment Syndrome,Myasthenia Gravis, Amyotrophic Lateral Sclerosis, Mitochondrial Myopathies,Rhabdomyolysis,Polymyositis,Fibromyalgia,Myotonia,Myofascial Pain Syndrome and etc.


What are the inflammatory myopathies?

The causes of IM are not known. An autoimmune process is likely, as these conditions are often associated with other autoimmune diseases and because they respond to immunosuppressive medication.


What causes dermatomyositis?

The exact cause of dermatomyositis is unknown


Is Dermatomyositis rare?

Only about 20,000 people in the United States have dermatomyositis


What is the medical condition polymyositis?

Polymyositis is an inflammatory muscle disease causing weakness and pain.


When was dermatomyositis discovered?

The first cases of dermatomyositis were discovered by E. Wagner in 1863 and P. Potain in 1875.


What are other types of myopathy or inflammatory muscle disease?

Dermatomyositis (DM) and inclusion body myositis and juvenile dermatomyositis.


What does dermatomyositis eventually cause?

In dermatomyositis, the muscle weakness is accompanied by a rash that appears on the upper body, arms, and fingertips


What is the prefix for the word polymyositis?

The prefix for the word polymyositis is "poly-," which means many or much.