PATHOLOGY OF DISULFIRAM NEUROPATHY

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Abstract
The pathological changes in a sural nerve biopsy from a 42-year-old woman with disulfiram-induced peripheral neuropathy were assessed by quantitative light microscopy, electron microscopy, and the study of teased nerve fibres. The nerve had a marked loss of myelinated fibres; of the remaining myelinated fibres some were undergoing Wallerian-type axonal degeneration. Large myelinated fibres were preferentially involved. Primary demyelination, remyelination, and evidence of regeneration were not present. Because of the marked differences between the pathological findings in disulfiram neuropathy and carbon disulfide neuropathy, it is concluded that carbon disulfide is not responsible for the neurotoxic effect of disulfiram.

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