<unk>  <unk>  is a genetic disorder that affects the skin, hair, teeth, and nails.  It is also known as Bloch Sulzberger syndrome, Bloch Siemens syndrome, melanoblastosis cutis and naevus<unk> sus systematicus.
Incontinentia pigmenti
Semantic dementia
Canavan disease
Black piedra
Metachromatic leukodystrophy
White piedra
Presbycusis
Kikuchi disease