NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,992 terms related to cancer and medicine.

xeroderma pigmentosum
(ZEER-oh-DER-ma pig-men-TOH-sum)
A genetic condition marked by an extreme sensitivity to ultraviolet radiation, including sunlight. People with xeroderma pigmentosum are not able to repair skin damage from the sun and other sources of ultraviolet radiation, and have a very high risk of skin cancer.