Dejerine-Sottas disease is an uncommon hereditary neuropathy which has
not been reported in Taiwan. We describe a 57-year-old woman who had
slowly progressive weakness in her four limbs since adolescence. None
of her close relatives had the disease and no consanguinity was noted.
Neurologic examination showed severe weakness and vibratory sensation
loss in the four limbs. The tendon reflexes were generally absent. El
ectrophysiologic studies suggested a systemic myelinopathic process. L
ight and electron microscopy of the sural nerve biopsy specimens revea
led many onion-bulb shapes formed by the Schwann cell processes or bas
ement membranes without any evidence of myelin sheaths around the axon
s, which are characteristic features of Dejerine-Sottas disease.