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Definition | Causes | Risk Factors | Symptoms | Diagnosis | Treatment | Prevention

Definition

Wilson disease causes a buildup of copper in the body. It is very rare. Too much copper can be poisonous.

Copper is a mineral we get from food. Our bodies need it in small amounts. We eat much more copper than we need. The copper needs to be passed out of our bodies. People with Wilson disease cannot pass the copper they do not need. The copper builds up in the body and damages organs like the liver, brain, kidneys, and eyes. This disease is fatal unless it is treated before serious illness develops.

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Causes

Wilson disease is a genetic disorder. A faulty gene causes this system to malfunction. Both parents must have the faulty gene in order for the child to develop the disease. People with only one faulty gene may never have symptoms. However, they can pass the gene on to their children.

Risk Factors

The only known factor that increases your risk for Wilson disease is a family history of the disease. It tends to be most common in eastern Europeans, Sicilians, and southern Italians.

Symptoms

It may take some time for copper to build up. At first, the liver will hold the excess copper. Eventually, the liver will not be able to hold the copper. Copper will begin to leave the liver and move to other organs like the brain or eyes. Symptoms most commonly appear in people under 40 years old. In children, the symptoms can be present as early as five years of age.

  • Symptoms of excess copper in the liver include:
    • Jaundice—yellowing of the skin
    • Swollen abdomen
    • Pain in the abdomen
    • Nausea
    • Vomiting blood
  • Symptoms of excess copper in the brain include:
    • Depression
    • Anxiety
    • Mood swings
    • Aggressive or other inappropriate behaviors
    • Difficulty speaking and swallowing
    • Tremors
    • Rigid muscles
    • Problems with balance and walking
  • Symptoms of excess copper in the eyes include Kayser-Fleischer rings, which are rusty or brown-colored rings around the iris.

Diagnosis

Wilson disease is rare. Symptoms may be attributed to other more common causes like hepatitis or cirrhosis. You may also appear healthy even while your liver is getting damaged. However, it is important to get diagnosed and treated early. This will help to avoid organ damage and early death.

Your doctor will ask about your symptoms and medical history. A physical and mental exam will be done. Your eyes will be examined for brown, ring-shaped color in the cornea (Kayser-Fleischer rings).

Your bodily fluids and tissues may be tested for copper. This can be done with:

  • Blood and urine tests
  • Liver biopsy

Images may be taken of your brain. This can be done with MRI.

You may consider genetic testing if there is a family history of Wilson disease. If the condition is identified before symptoms develop, it may prevent serious complications.

It may also be recommended in people who don't have a history of high alcohol intake but have a fatty liver.

Genetic counseling may be helpful to review risks of genetic testing.

Treatment

The goals of treatment are to:

  • Remove the excess copper
  • Prevent copper from building up again
  • Improve all associated symptoms of copper overload

Treatment cannot cure the underlying problem of copper build up. You will need to continue treatment throughout your lifetime.

Medications may help by:

  • Binding to the cooper. This helps release copper from organs into blood. Most of the copper will then be filtered in the kidneys and passed in the urine.
  • Blocking the absorption of copper in the digestive tract.

Certain changes in your diet may help reduce your copper intake:

  • Avoid foods high in copper such as liver, shellfish, nuts, chocolate, and mushrooms.
  • Have your drinking water checked for copper levels.
  • Avoid multivitamins with copper.

A liver transplant may be needed if you have severe liver damage. Transplantation may also be needed if you cannot tolerate the side effects of medications.

Prevention

Currently, there are no guidelines to prevent Wilson disease.

RESOURCES:

American Association for the Study of Liver Diseases

https://www.aasld.org

Wilson Disease Association

http://www.wilsonsdisease.org

CANADIAN RESOURCES:

Canadian Liver Foundation

http://www.liver.ca

References:

About Wilson Disease. Wilson Disease Association website. Available at: http://www.wilsonsdisease.org/about-wilsondisease.php. Accessed April 26, 2013.

Brewer GJ, Askari F, et al. Treatment of Wilson disease with ammonium tetrathiomolybdate: IV. Comparison of tetrathiomolybdate and trientine in a double-blind study of treatment of the neurologic presentation of Wilson disease. Arch Neurol. 2006 Apr;63(4):521-527.

Ferenci P. Wilson disease. Clin Gastroenterol Hepatol. 2005 Aug;3(8):726-733.

Wilson disease. EBSCO DynaMed website. Available at: https://dynamed.ebscohost.com/about/about-us. Updated April 8, 2013. Accessed April 26, 2013.

Wilson Disease. National Digestive Disease Information Clearinghouse website. Available at: http://digestive.niddk.nih.gov/ddiseases/pubs/wilson. Updated April 30, 2012. Accessed April 26, 2013.

Last reviewed April 2013 by Michael Woods, MD

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.