xeroderma pigmentosum

xeroderma pigmentosum

[pig-muhn-toh-suhm]
noun Pathology.
a rare inherited disease characterized by sensitivity to ultraviolet light, exposure resulting in lesions and tumors of the skin and eyes.

Origin:
1880–85; < Neo-Latin: pigmented xeroderma; see pigment, -ose1

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American Heritage
Medical Dictionary

xeroderma pigmentosum xeroderma pig·men·to·sum (pĭg'mən-tō'səm, -měn-)
n.
A rare hereditary skin disorder caused by a defect in the enzymes that repair DNA damaged by ultraviolet light and resulting in hypersensitivity to the carcinogenic effect of ultraviolet light.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
Encyclopedia

xeroderma pigmentosum

rare, recessively inherited skin condition in which resistance to sunlight and other radiation beyond the violet end of the spectrum is lacking. On exposure to such radiation the skin erupts into numerous pigmented spots, resembling freckles, which tend to develop into multiple carcinomas. The condition may occur in mild or severe forms. Protection from direct sunlight and surgical destruction of precancerous or established malignant lesions are the prescribed treatment

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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