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Dermatomyositis
Medical Questions » Dermatomyositis
| Name: Dermatomyositis |
| Also known as: Polymyositis |
| A rare disease that combines a persistent rash with muscle weakness. When it occurs without the rash (which is present in only 40% of cases) it is called polymyositis. |
Causes of Dermatomyositis
Unknown. Commonly attacks those in late middle-age. |
Symptoms of Dermatomyositis
A gradually progressive weakness and pain of the muscles in the neck, upper arms, shoulder, buttocks and thighs. Patients may also develop a dusky red rash on the cheeks and nose, shoulders and upper chest and back. The eyelids are often swollen and appear bruised. Unusual symptoms include redness and bleeding under the nails, cold hands, and a scaly rash over the knuckles. |
Tests for Dermatomyositis
Diagnosed by blood tests, muscle biopsy and by measuring the muscle' s electrical activity. |
Treatment for Dermatomyositis
Drugs such as steroids, methotrexate and azathioprine are commonly used.
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Complications of Dermatomyositis of its treatment
Ten percent risk of developing cancer. Rare complications may involve the heart and lungs. |
Likely Outcome of Dermatomyositis
No cure. Most patients can lead a relatively normal life, although a minority are disabled by muscle weakness. |
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