Polymyositis - adult

Polymyositis and dermatomyositis are rare inflammatory diseases. (The condition is called dermatomyositis when it involves the skin.) These diseases lead to muscle weakness, swelling, tenderness, and tissue damage. They are part of a larger group of diseases called myopathies, more specifically inflammatory myopathies.

Superficial anterior muscles

Superficial muscles are close to the surface of the skin. Muscles which lie closer to bone or internal organs are called deep muscles.



Exams and Tests


Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional