<unk>  is a fatal disease of the nervous system that typically begins in childhood. Onset of symptoms is usually between 5 and 10 years of age. Often, it is autosomal recessive. It is the common name for a group of disorders called the neuronal ceroid lipofuscinoses (NCLs). Although<unk>  is usually regarded as the juvenile form of NCL (or "type 3"), some physicians use the term<unk>  to describe all forms of NCL. Historically, the NCLs were classified by age of disease onset as infantile NCL (INCL), late infantile NCL (LINCL), juvenile NCL (JNCL) or adult NCL (ANCL). At least 20 genes have been identified in association with<unk> , but juvenile NCL, the most prevalent form of<unk> , has been linked to mutations in the CLN3 gene. It was first described in 1903.
Batten disease
Keshan disease
Akureyri disease
Krabbe disease
Farber disease
Karak syndrome
Sandhoff disease
Menkes disease