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Abstract
Three women developed a predominantly motor polyneuropathy following industrial exposure
to an adhesive agent containing 80.4% of n-hexane as a volatile substance.
Histological and electron-microscopic studies were carried out on sural nerve and
on soleus muscle. In the nerve, there were polymorphous changes in both myelin sheaths
and axons of large diameter fibres. Irregular and swollen myelin sheaths and segmental
swelling of axons with dissolution of neurotubules and evident increase of neurofilaments
were frequently observed. Polymorphous inclusion bodies were often present in Schwann
cell cytoplasm. The small myelinated and unmyelinated fibres did not show significant
changes.
The muscles showed denervation atrophy and focal degenerative myopathic changes, with
presence of lymphocytic infiltrates and phagocytosis.
This study confirms the noxious effect of n-hexane on the peripheral nerve, with development, in our cases, of a toxic polyneuropathy
and denervation muscular atrophy with consistent myopathic changes.
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Article info
Publication history
Accepted:
February 19,
1980
Received in revised form:
February 4,
1980
Received:
November 15,
1979
Identification
Copyright
© 1980 Published by Elsevier Inc.