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Drugs and diseases reference index

Drugs and diseases reference index
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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «X»:

  1. Xanax Xanax
    Xanax: See: Alprazolam....
  2. Xanth- (prefix) Xanth- (prefix)
    Xanth- (prefix): A colorful prefix relating to a yellow color. "Xanth-" is related to the word "xanthic" which has its roots in the Greek word "xanthos" which means yellow. A number of medical terms trace to "xanthos" including, for example: Xanthelasma: A condition in which tiny (1-2 mm) yellowish...
  3. Xanthelasma Xanthelasma
    Xanthelasma: Tiny (1-2 mm) yellowish plaques that are slightly raised on the skin surface of the upper or lower eyelids. Xanthelasma is caused by tiny deposits of fat in the skin and is often associated with abnormal blood fat levels (hyperlipidemia). Xanthelasma is a kind of minute harmless gro...
  4. Xanthine Xanthine
    Xanthine: A substance found in caffeine, theobromine, and theophylline and encountered in tea, coffee, and the colas. Chemically, xanthine is a purine. There is a genetic disease of xanthine metabolism, xanthinuria, due to deficiency of an enzyme, xanthine dehydrogenase, needed to process xanthine ...
  5. Xanthinuria Xanthinuria
    Xanthinuria: An inherited metabolic disorder in which there is deficiency of an enzyme needed to process xanthine, a substance found in caffeine, theobromine, theophylline, and related substances. Unchecked, xanthinuria can lead to kidney stone formation and urinary tract disease (due to xanthin...
  6. Xanthoma Xanthoma
    Xanthoma: Yellowish firm nodules in the skin frequently indicating underlying disease, such as diabetes, disorder of fats (lipid disorder or hyperlipidemia), or other conditions. A xanthoma is a kind of harmless growth of tissue. Under the microscope, a xanthoma can be seen to be composed of l...
  7. Xanthoma tendinosum Xanthoma tendinosum
    Xanthoma tendinosum: Xanthoma that clusters around tendons, and is associated with lipid disorders....
  8. Xanthoma tuberosum Xanthoma tuberosum
    Xanthoma tuberosum: Xanthoma that clusters near joints. It is associated with lipid disorders, cirrhosis of the liver, and thyroid disorders....
  9. Xanthoma, diabetic Xanthoma, diabetic
    Xanthoma, diabetic: See: Eruptive xanthoma....
  10. Xanthoma, disseminatum Xanthoma, disseminatum
    Xanthoma, disseminatum: A type of xanthoma characterized by orange-to-brown nodules on the skin or mucus membranes....
  11. Xanthoma, eruptive Xanthoma, eruptive
    Xanthoma, eruptive: See: Eruptive xanthoma....
  12. Xanthoma, planar Xanthoma, planar
    Xanthoma, planar: A type of xanthoma characterized by flat yellow-to-orange patches or pimples that cluster together on the skin....
  13. Xanthomatosis Xanthomatosis
    Xanthomatosis: A condition in which fatty deposits occur in various parts of the body. These fatty deposits are called xanthomas or xanthomata and appear as yellowish firm nodules in the skin. Xanthomas are in themselves a harmless growth of tissue. However, they frequently indicate the presence...
  14. Xanthopsia Xanthopsia
    Xanthopsia: A form of chromatopsia, a visual defect in which objects appear as if they have been overpainted with an unnatural color. In xanthopsia, that color is yellow....
  15. Xanthosis Xanthosis
    Xanthosis: Yellowing of the skin without yellowing of the eyes. In jaundice there is yellowing of both the skin and the whites of the eyes. Xanthosis is associated sometimes with malignancies....