<unk>  <unk>  is one of a small group of genetic diseases called peroxisome biogenesis disorders (PBD), which are part of a larger group of diseases called the leukodystrophies.
These are inherited conditions that damage the white matter of the brain and affect motor movements.<unk>  is the mildest of the PBDs; Zellweger syndrome, neonatal adrenoleukodystrophy, and rhizomelic chondrodysplasia have similar, but more severe symptoms.
Infantile refsum disease
Yellow nail syndrome
Haff disease
Green nail syndrome
Dyskeratosis congenita
Kummell disease
Fuchs' dystrophy
Geroderma osteodysplastica