Abstract

Familial progressive hyperpigmentation (FPH), also known as melanosis universalis hereditaria, is a rare disorder characterized by congenital hyperpigmentation. Investigators in Shanghai undertook a genome-wide scan in a six-generation Chinese family with FPH and found significant evidence linking the FPH-responsible gene to chromosome 12q21.31-q23.1. Affected individuals showed hyperpigmentation of the hands, palms, limbs, face, neck, trunk, and soles. Biopsy of the …

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