<unk>  is a rare, fatal, inherited<unk>  of the nervous system (neurodegenerative disorder) that begins in childhood. Also known as Spielmeyer-Vogt-Sjogren-Batten<unk> , it is the most common form of a group of disorders called neuronal ceroid lipofuscinosis (or NCLs). Although<unk>  is usually regarded as the juvenile form of NCL, some physicians use the term<unk>  to describe all forms of NCL.
Batten disease
Krabbe disease
Farber disease
Sandhoff disease
Menkes disease
Pickardt syndrome
Hurler-Scheie syndrome
Kennedy disease