A condition in which deposits of yellowish, fatty material develop in various parts of the body, particularly in the skin, internal organs, corneas of the eyes, brain, and tendons. The deposits may occur only in the eyelids (see xanthelasma). A key feature of xanthomatosis is the tendency for fatty material to be deposited in the linings of blood vessels, leading to generalized atherosclerosis. Xanthomatosis is often associated with hyperlipidaemias. Treatment aims to lower the levels of fats in the blood by means of a diet that is low in cholesterol and high in polyunsaturated fat, and by drug treatment.


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