Urticarial Vasculitis

Urticarial vasculitis is a form of vasculitis that affects the skin, causing wheals or hives and/or red patches due to swelling of the small blood vessels. It has two forms: One with normal levels of proteins called complements; the other with low levels of complements; it’s called hypocomplementemic vasculitis.

What causes Urticarial Vasculitis?

The cause of most cases of urticarial vasculitis is unknown. It may be associated with a number of diseases, especially systemic lupus erythematosus, rheumatoid arthritis and Sjögren’s syndrome. Some cancers, including leukemias, colon and pancreatic, and infections like Hepatitis B and C can cause this form of vasculitis. So can some drugs, including antibiotics, ACE inhibitors used for treating high blood pressure, and certain diuretics.

How common is it?

Urticarial vasculitis is uncommon. There are no well researched estimates of how frequent it is.

Who gets Urticarial Vasculitis?

Both males and females get the disease.

Symptoms

The most common symptoms are hives that cause itching, pain and a burning feeling. Skin patches often are red-rimmed with white centers, and unlike common hives may have petechia, or bleeding under the skin. The patches can be present for days and result in skin discoloration as they heal. Some patients may also have fevers, joint and abdominal pain, shortness of breath and swollen lymph glands. Sometimes urticarial vasculitis even causes injury to vital organs including the gut, lungs and kidneys.

Diagnosis

Diagnosis is based on characteristic patches in the skin. Sometimes a biopsy is ordered to show inflammation in the skin and damage of small blood vessels with white blood cells. Since it’s often associated with a number of different diseases, it’s often necessary to do other tests and exams to rule out underlying conditions like lupus erythematosus or cancer. Tests of vital organs may also be indicated, especially when the blood levels of complement are low.

Treatment

Treatment depends on the extent of symptoms and organ involvement. When levels of complement are normal and there is no internal organ involvement or underlying disease, the symptoms may improve on their own or with minimal treatment. In this case, antihistamines or nonsteroidal drugs such as ibuprofen or naproxen may be helpful. For more severe cases, other drugs which affect the immune system may be needed, such as corticosteroids (prednisone, others), hydroxychloroquine, colchicine, dapsone; and chemotherapies like azathioprine or cyclophosphamide. Treatment may be intermittent, although it is not uncommon for patients to need treatment for several years.

What are the complications?

The most common serious complications are skin pigmentation and, occasionally, skin ulcers, plus damage to organs such as the lungs, eyes and kidneys.

Prognosis

The natural history of urticarial vasculitis depends in part upon the blood complement levels. In cases where these are normal, the prognosis is generally good. In cases where the complements are low, the disease may be more severe. When urticarial vasculitis is related to a disease such as lupus or cancer, its prognosis is often governed by the prognosis of the underlying disease

What’s new in Urticarial Vasculitis?

Progress is being made in understanding how urticarial vasculitis comes about and how to better treat it.

Revision:  September 2012

The Vasculitis Foundation gratefully acknowledges Dr. Eric L. Matteson from the Mayo Clinic, Rochester, MN, for his expertise and contribution in compiling this information.

Click here to get the Urticarial Vasculitis brochure in PDF format

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Participation in Clinical Trials is one way you can help advance research into finding better treatments and perhaps even a cure for vasculitis!
Learn how you can participate in clinical trials - National Institutes of Health

VCRC-VF Fellowship Program

The Vasculitis Clinical Research Consortium-Vasculitis Foundation Fellowship is a mentored training program of up to two years for physician-investigators who have a strong interest in vasculitis and wish to pursue a period of specialized training with an emphasis on clinical and/or translational patient-oriented clinical investigation.

The trainee will undertake the Fellowship between 2014-2019 at a VCRC-affiliated site in North America that has an established distinct clinical and research program in vasculitis and availability of senior faculty mentors.

"The Vasculitis Foundation is committed to creating greater awareness and interest in vasculitis," said Joyce Kullman, executive director of the VF. "We hope that the VCRC-VF Fellowship will encourage medical professionals to pursue careers in patient care and research linked to vasculitis."

To support the VCRC-VF Fellowship, please visit the donate page.

Medical Institutions

The Vasculitis Foundation encourages vasculitis patients to seek expert medical care for diagnosis and treatment of the disease. The VF works closely with vasculitis experts and centers around the world to ensure patients have access to the most up-to-date medical care.

The Vasculitis Clinical Research Consortium (VCRC) is an integrated group of academic medical centers, patient support organizations, and clinical research resources dedicated to conducting clinical research in different forms of vasculitis and improving the care of patients with vasculitis.

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