Usually the Xeroderma
Pigmentosum is detected in early infancy ¾within 1-2 Years.
A child having severe
sunburn after their first exposure to sun may be a clue to the diagnosis of
Xeroderma Pigmentosum (XP). XP can usually be conclusively diagnosed by measuring
the DNA Repairing Factor from skin/blood sample.
Some affected
children do not get sunburned with minimal sun exposure, but instead tan
normally. By the age 2, almost all children with XP develop freckling of skin
in sun-exposed areas (such as face, arms & lips); this type of freckling rarely
occurs in children without the disorder.
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