Type : Phenotype or locus, molecular basis unknown;
Alternative titles and symbols : FPH;
Description : Familial progressive hyperpigmentation (FPH) is a rare autosomal dominant disorder
characterized by patches of hyperpigmentation in the skin, which are present at birth
or in early infancy and increase in size and number with age (summary by Zhang et
al., 2006). - Genetic Heterogeneity of Familial Progressive Hyperpigmentation Familial
progressive hyperpigmentation-1 (FPH1) has been mapped to chromosome 19pter-p13.1.
Also see familial progressive hyperpigmentation-2 (FPH2; 145250), which is caused
by mutation in the;