Expansion of the genotypic and phenotypic spectrum of xeroderma pigmentosum in Chinese population.

Abstract excerpt

BACKGROUND: Xeroderma pigmentosum (XP) is a rare genodermatosis characterized by exaggerated sunburn reactions, freckle-like pigmentation, and a high possibility of developing cutaneous tumors. XP comprised seven complementation groups (from XP-A to XP-G) and a variant form XP-V. METHODS: This study was based on five unrelated Chinese families with six patients clinically suspected to be XP. Mutation screening...

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