<unk>  or Xeroderma pigmentosum is a genetic disorder characterized by the skin and eye symptoms of xeroderma pigmentosum (XP) occurring in association with microcephaly, progressive mental retardation, retarded growth and sexual development, deafness, choreoathetosis, ataxia and quadriparesis.
DeSanctis–Cacchione syndrome
Galloway Mowat syndrome
Wallis–Zieff–Goldblatt syndrome
Lyngstadaas syndrome
Grinspan's syndrome
Hapnes Boman Skeie syndrome
Zieve's syndrome
Laugier–Hunziker syndrome