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Medical Definition of Cerebrotendinous xanthomatosis
1. A disorder with deposition of cholestanol in the brain and other tissues and high levels in plasma but with normal cholesterol level; characterised by progressive cerebellar ataxia beginning after puberty, juvenile cataracts, spinal cord involvement, and tendinous or tuberous xanthomata; autosomal recessive inheritance. Probably due to a defect in hepatic mitochondrial 26-hydroxylase in bile acid biosynthesis. Synonym: cerebrotendinous cholesterinosis. (05 Mar 2000)