familial progressive hyperpigmentation with or without hypopigmentation (DOID:0111373)
Alliance: disease page
Synonyms: FPHH; melanosis universalis hereditaria; MUH
Alt IDs: OMIM:145250
Definition: A skin disease characterized by progressive, diffuse hyperpigmentation of variable intensity sometimes associated with cafe-au-lait macules and larger hypopigmented ash-leaf macules that has_material_basis_in heterozygous mutation in the KITLG gene on chromosome 12q21.32.