<unk>  <unk> S) refers to a group of rare, inherited disorders of the nerve cells.
There are three main types of<unk> S:
Adult (Kufs' or Parry's disease)
Juvenile (Batten disease)
Late infantile (Jansky-Bielschowsky)
Neuronal ceroid lipofuscinosis
Pantothenate kinase-associated neurodegeneration
Ceroid storage disease
Glycogen storage disease
Neurofibrillary tangle
Neutral lipid storage disease
Corticobasal degeneration
Aceruloplasminemia