Symptoms

Polyarteritis nodosa is considered a multisystem disease. This means that it affects many parts of your body at the same time. It has a tendency to affect organs such as the skin, kidney, nerves, and gastrointestinal tract (part of the digestive system that includes the mouth, esophagus, stomach, and intestines).

If you experience any of these symptoms do not assume it is due to polyarteritis nodosa. These symptoms may be caused by other, less serious health conditions. If you experience any one of them, see your physician.

Often with polyarteritis nodosa you will experience fatigue, weight loss, loss of appetite, and fever. Symptoms affecting particular organs include:

• Skin–polyarteritis nodosa often affects the skin first, especially on the legs, causing:
  • Rashes
  • Ulcers (open sores on the skin)
  • Nodules (small bumps under the skin)
  • Bruises
  • Gangrene (blood supply to the tissues is stopped, causing the skin to die)

  Cut-Away View of Skin with Bruise

  

  © 2009 Nucleus Medical Art, Inc.

• Nervous system
  • Tingling, burning, pain, or numbness in your feet, hands, legs, arms, and face
  • Seizures
  • Stroke
  • Decreased alertness
  • Inability to think clearly
• Kidneys
  • Protein in the urine
  • Hypertension (high blood pressure)
• Gastrointestinal
  • Pain in the abdomen
  • Gastrointestinal bleeding
  • Bowel infarction (not enough oxygen-rich blood to the bowels causing tissue damage)
  • Nausea, vomiting
  • Bloody and nonbloody diarrhea
• Heart
  • Heart attacks (heart does not get enough blood flow leading to the death of the heart muscle)
  • Congestive heart failure (inability of the heart to pump out all the blood)
• Eyes
  • Detachment of retina
  • Scleritis—inflammation in the sclera (white part of the eye)

  Detachment of Retina

  

  © 2009 Nucleus Medical Art, Inc.

• Genitals
  • Testicular infarction (not enough oxygen-rich blood to the testicles causing tissue damage)

Diagnosis

There is no single test to diagnose polyarteritis nodosa. Your doctor will ask about your symptoms and medical history, and perform a physical exam.

Tests may include the following:

• Blood tests
  • Elevated ESRs (erythrocyte sedimentation rate): to measure the degree of inflammation and to monitor inflammatory disease
  • CBC (complete blood count): to look for elevated white blood count
  • Renal function tests
  • Immunoglobulins: to look for elevated levels of this blood protein that serves immunity purposes
• Urine test—to check for protein in the urine
• Skin biopsy —surgical removal of some skin for further examination
• Biopsy of muscles, nerves, kidney, or bowel—surgical removal of a sample of muscle or nerve to see if there is evidence of arterial inflammation in those tissues
• Nerve conduction study—to evaluate for muscle or nerve damage
  • Your doctor will place small electrodes on your skin over the muscles being tested; electrical signals produced by your nerves and muscles are recorded, and the information is interpreted by a specially-trained physician.
• Arteriogram—dye is injected in arteries, and x-rays are taken that can reveal inflammation within the vascular system