Quadrichrome vitiligo
Quadrichrome vitiligo is a subtype of vitiligo, a skin condition characterized by the loss of melanin, the pigment that determines the color of skin, hair, and eyes.
Pronunciation
Quadrichrome vitiligo: /kwɒdrɪkroʊm vɪtɪˈlaɪɡoʊ/
Etymology
The term "quadrichrome" is derived from the Latin "quadri-" meaning "four" and the Greek "chroma" meaning "color". "Vitiligo" is derived from the Latin "vitium" meaning "blemish" or "defect".
Definition
Quadrichrome vitiligo is a variant of vitiligo where there are four shades of color present on the skin. These include the color of normal skin, the depigmented white patches typical of vitiligo, and two intermediate shades between the normal and depigmented skin.
Related Terms
- Vitiligo: A condition that causes the loss of skin color in blotches.
- Melanin: The pigment that gives human skin, hair, and eyes their color.
- Depigmentation: The lightening of the skin, or loss of pigment.
- Pigmentation: The coloring of a person's skin.
See Also
References
- Ezzedine K, Eleftheriadou V, Whitton M, van Geel N. Vitiligo. Lancet. 2015 Jul 4;386(9988):74-84. doi: 10.1016/S0140-6736(14)60763-7. Epub 2015 Feb 24. PMID: 25721466.
- Picardo M, Dell'Anna ML, Ezzedine K, Hamzavi I, Harris JE, Parsad D, Taieb A. Vitiligo. Nat Rev Dis Primers. 2015 Oct 22;1:15011. doi: 10.1038/nrdp.2015.11. PMID: 27188223.
External links
- Medical encyclopedia article on Quadrichrome vitiligo
- Wikipedia's article - Quadrichrome vitiligo
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