Also known as Inflammatory myopathies
Myositis disorders are autoimmune conditions characterized by voluntary (skeletal) muscle inflammation. The primary symptom of these disorders is muscle weakness, which is usually progressive and may be severely impairing.
There are three main types:
All three conditions are considered rare. The cause of each of these disorders is currently unknown. Each of these disorders greatly differs in response to treatment.
Funds research, provides support, and information for people with myositis and health professionals. They host an annual patient conference in the USA.