Definitions for "Xeroderma pigmentosum"
Rare genetic disease in which nucleotide excision repair is defective and the cell thus is deficient in repairing DNA damaged by UV. Problems found in XP patients include sun sensitivity, freckling, and cancers of sun exposed areas of the skin, eyes, ears, mouth, and nose. In addition, some XP patients develop neurological problems such as intellectual impairment, deafness, speech problems, and difficulty walking.
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.
autosomal recessive disease associated with a high sensitivity to UV radiation in sunlight due to a deficiency in DNA repair enzyme, DNA-specific endonuclease; results in a high incidence of skin tumors (basal cell carcinoma, squamous cell carcinoma, melanoma).