| Risk Factors
is a condition in which fatty deposits form beneath the skin. They range from very small to up to 3 inches in size. Xanthomas can be cosmetically disfiguring. Xanthomas may appear anywhere on the body, but are most frequently found on the elbows, joints, tendons, knees, hands, feet, and buttocks.
is a form of xanthoma that appears on the eyelids.
Xanthoma is typically caused by:
- Elevated levels of fats in the blood
Metabolic disorders including:
Inherited metabolic disorders like high levels of
in the blood
- Some cancers
Although xanthelasma may be associated with high
and cholesterol levels, it can occur without cholesterol problems.
Xanthoma is more common in older adults. Factors that may increase your chance of xanthoma include:
- Having a metabolic disorder listed above
- Having extremely high cholesterol and/or triglyceride levels
Xanthoma may cause:
- Bumps under the skin
Skin lesions that are:
- Many different shapes
- Yellow to orange
- Have well-defined borders
Xanthomas may be tender, itchy, and painful.
Xanthoma is usually diagnosed by examining the skin growths. A
of the tissue will confirm a fatty deposit.
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A blood lipid profile and other tests may be done to determine the underlying condition responsible for the appearance of xanthomas.
Treating xanthoma consists of treating and controlling the underlying health conditions that cause the fatty deposits to develop. Better control of the metabolic disorders that can lead to xanthoma can reduce their occurrence.
Xanthomas that are removed can return after treatment.
Other treatment options for xanthomas include:
Surgery may be used to remove the fatty deposits.
Laser surgery with CO2 laser, pulse-dye laser, or Erbium-YAG laser can be done.
Treatment with trichloroacetic acid may also be used to treat xanthomas.
To help reduce the chances of xanthoma:
- Keep blood lipids and cholesterol at a healthy level
- Keep metabolic disorders well-controlled
Shapiro M. Rare Genetic Disorders Altering Lipoproteins. Endotext [Internet]. South Dartmouth (MA): MDText.com, Inc.; 2000-.
2015 Jun 12.
Xanthomas. DermNet NZ website. Available at: http://www.dermnetnz.org/dermal-infiltrative/xanthoma.html. Updated November 8, 2014. Accessed May 16, 2016.
Last reviewed May 2016 by Michael Woods, MD
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