Dyschromatosis universalis hereditaria is a rare genodermatosis characterized by reticulate hyper- and hypo- pigmentated macules in a generalized distribution. Both autosomal dominant and recessive inheritance have been reported with the disorder. It has been associated with mutations in genes SASH1 and ABCB6. References External links Dyschromatosis universalis hereditaria: Two cases, Dermatology Online Journal. Genodermatoses Disturbances of human pigmentation