 H&E stain |
 Gomori trichrome stain |
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Clear space between the perineurium and endoneurial contents (arrows). |
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 H&E stain |
 H&E stain |
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Clear space contains hyaline material and occasional vessels and cells. |
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 Toluidine blue stain |
 Toluidine blue stain |
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Clear space contains hyaline material and occasional vessels and cells. There is also a variable degree of axon loss within fascicles. |
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