What is the difference between polymyositis and myositis?

What is the difference between polymyositis and myositis?

Myositis means inflammation of the muscles that you use to move your body. An injury, infection, or autoimmune disease can cause it. Two specific kinds are polymyositis and dermatomyositis. Polymyositis causes muscle weakness, usually in the muscles closest to the trunk of your body.

What are the different types of inflammatory myopathies?

There are three major types: dermatomyositis, polymyositis and inclusion body myositis. In the United States, idiopathic inflammatory myopathies affect about 1 out of every 100,000 people. Polymyositis and dermatomyositis are most common in women, whereas inclusion body myositis affects men more often.

What are the different types of myositis in the body?

There are many different types of myositis, including: Idiopathic inflammatory myopathies. In this rare group of muscle diseases, the cause of the muscle inflammation is unknown (idiopathic). There are three major types: dermatomyositis, polymyositis and inclusion body myositis. In the United States,…

What are the symptoms of acute myositis in children?

Benign acute myositis. A child suddenly has trouble walking and complains of severe leg pain. This pain is often worst in the calf muscles. In most cases, the child also has a history of recent fever, runny nose, sore throat and other upper respiratory symptoms. Myositis ossificans.

What are the four classic features of transverse myelitis?

Four classic features of transverse myelitis are: Weakness of the legs and arms . People with transverse myelitis may have weakness in the legs that progresses rapidly. If the myelitis affects the upper spinal cord it affects the arms as well.

Are there different types of myositis in people?

Frequently, patients explain these symptoms away as signs of “getting old.” But myositis is a very real and often serious condition that needs to be taken seriously. There are a few different forms of myositis. Review each of the myositis conditions below to learn the differences and similarities among the different types.

What are the four types of inflammatory myopathies?

The four main types of chronic, or long-term, inflammatory myopathies are polymyositis, dermatomyositis, inclusion body myositis, and necrotizing autoimmune myopathy.

What kind of skin rash is myositis associated with?

What is myositis? Myositis is a general description for chronic, progressive inflammation of the muscles. Some types of myositis are associated with skin rashes. This rare disease can be difficult to diagnose, and the cause is sometimes unknown.

Benign acute myositis. A child suddenly has trouble walking and complains of severe leg pain. This pain is often worst in the calf muscles. In most cases, the child also has a history of recent fever, runny nose, sore throat and other upper respiratory symptoms. Myositis ossificans.