Definition:
Hemochromatosis is a disorder that interferes with the body's ability to break down iron, and results in too much iron being absorbed from the gastrointestinal tract.
Alternative Names:
Causes, incidence, and risk factors:
Hemochromatosis occurs when too much iron builds up in the body, particularly the liver. The result is liver swelling. There are two forms of hemochromatosis: primary and secondary. Primary hemochromatosis is caused by a problem with your genes or by receiving a large number of blood transfusions which boost your iron levels. Primary hemochromatosis is the most common genetic disorder in the United States, affecting an estimated 1 of every 200 to 300 Americans. Secondary or acquired hemochromatosis can be caused by diseases such as thalassemia or sideroblastic anemia, especially if the person has received a large number of blood transfusions. Occasionally, it may be seen with hemolytic anemia, chronic alcoholism, and other conditions. Hemochromatosis affects more men than women. It is particularly common in Caucasians of western European descent. Symptoms are often seen in men between the ages of 30 and 50 and in women over 50, although some people may develop problems by age 20. You have a higher risk of hemochromatosis if someone else in your family has or had the condition.
References:
Bacon BR. Iron Overload (Hemochromatosis) In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 231.
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