Symptoms vary depending on the location of the affected vessels. A muscle biopsy of the suspected muscle , nerve biopsy , or organ or tissue biopsy shows vasculitis . A chest x-ray may indicate lesions of the chest. A urinalysis may show blood, casts , urine protein , or other abnormalities. Hepatitis blood tests may be positive.
Treatment aims at reduction of the inflammation, allowing the natural healing process to occur.
The outcome varies with the location of the vasculitis and the extent of associated infarction or tissue damage. Urgent or emergency symptoms include weakness , swallowing difficulty , speech impairment , changes in pupil size, and loss of function of an arm or leg or other body part. Abnormalities of the blood vessels in the skin can cause many different types of skin rashes such as the one seen here. One to two centimeter ulcerations are seen here on the lower legs.