Canadian Medical Guide > Diseases > Nervous System Diseases > Demyelinating Diseases > Hereditary Central Nervous System Demyelinating Diseases > Canavan Disease Terms and Definitions

Canavan Disease

Medical Definition:	A rare neurodegenerative condition of infancy or childhood characterized by white matter vacuolization and demeylination that gives rise to a spongy appearance. Aspartoacylase deficiency leads to an accumulation of N-acetylaspartate in astrocytes. Inheritance may be autosomal recessive or the illness may occur sporadically. This illness occurs more frequently in individuals of Ashkenazic Jewish descent. The neonatal form features the onset of hypotonia and lethargy at birth, rapidly progressing to coma and death. The infantile form features developmental delay, DYSKINESIAS, hypotonia, spasticity, blindness, and megalencephaly. The juvenile form is characterized by ATAXIA; OPTIC ATROPHY; and DEMENTIA. (From Adams et al., Principles of Neurology, 6th ed, p944; Am J Med Genet 1988 Feb;29(2):463-71)
Guide Notes:	do not confuse X ref CANAVAN-VAN BOGAERT-BERTRAN SYNDROME with VAN BOGAERT'S LEUKOENCEPHALITIS see SUBACUTE SCLEROSING PANENCEPHALITIS; DF: CANAVAN DIS
Also Called:	Canavan Disease, Familial Form,Canavan Disease, Infantile,Canavan Disease, Juvenile,Canavan Disease, Neonatal,Canavan Disease, Sporadic Form
Previously Indexed:	Cerebral Sclerosis, Diffuse (1981-1993),Demyelinating Diseases (1967-1993)

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