CANAVAN DISEASE, FAMILIAL FORM
\kˈanɐvˌan dɪzˈiːz], \kˈanɐvˌan dɪzˈiːz], \k_ˈa_n_ɐ_v_ˌa_n d_ɪ_z_ˈiː_z]\
Definitions of CANAVAN DISEASE, FAMILIAL FORM
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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)
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- An instrument for the gradual straightening of abnormally curved bone.