Polymyositis and Dermatomyositis Symptoms, Signs and Causes

Polymyositis and Dermatomyositis Symptoms, Signs and Causes

Due to the unusual impotence of the girdle of shoulder and the pelvic muscles, patients may be riveted to a wheelchair or bed. The defeat of the muscles of the larynx and the upper parts of the esophagus leads to a violation of swallowing and regurgitation. The muscles of the lower and upper limbs and face are usually not affected. Skin eruptions usually have a dark color and erythematous character. Periorbital swelling of purple color is also a characteristic. Skin eruptions may slightly rise above the skin surface and be smooth or covered with scales.