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Xeroderma pigmentosa. Definition. inherited inability to repair DNA damage from ultraviolet light. Cause. Autosomal recessive trait. Incidence. 1 or 2 people in 100,000. Risk Factors. It is a genetic disorder, there may or may not be a history of it in the family. Symptoms.
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Definition inherited inability to repair DNA damage from ultraviolet light
Cause Autosomal recessive trait
Incidence 1 or 2 people in 100,000
Risk Factors It is a genetic disorder, there may or may not be a history of it in the family
Symptoms *A sunburn that does not heal following minimal sun exposure *Blistering *Cutaneous telangiectasia *Increasing irregular pigmentation *Crusting and scaling of skin
More symptoms: *Oozing raw skin surface *Discomfort when exposed to bright light (photophobia) *skin cancers at very early age
Signs and Tests Examination of the eyes may show: *Clouding of the cornea *Keratitis *Lid tumors *Blepharitis *Amniocentesis, skin biopsies
Treatment Total avoidance of sunlight, light through windows, and even florescent bulbs Sunscreen and sunglasses Long sleeves and pants
Prognosis Most affected people die of malignancy early in adulthood.
Prevention Genetic counseling for those with family history