Neuromuscular

Renaut Bodies 1

Patterns
  Confluent
  Internal
  Typical
Renaut illustration

Reference 2

Renaut bodies: Features


Renaut Bodies: Typical


Gomori trichrome stain
Renaut Bodies
  Rounded
  Subperineurial
  Present in several fascicles
  All located in similar endoneurial regions

Toluidine blue stain

VvG stain
Renaut Body: Rounded; Filamentous layers


H&E stain
Renaut Bodies: Contain cells & Variably stained extracellular matrix

H&E stain

Gomori trichrome stain
Renaut Bodies: Contain cells & Variably stained extracellular matrix

Gomori trichrome stain

VvG stain
Renaut Body
  Rounded
  Filamentous layers
  Rounded sub-structures
  Cells, Scattered


Toluidine blue stain


Alcian blue stain
Renaut Bodies: Contain mucopolysaccharides (Alcian blue positive)

Alcian blue stain

Alcian blue stain

Renaut Bodies: Confluent


Toluidine blue stain
Renaut bodies, confluent
  Multiple pale rounded regions
  Probable area of chronic nerve damage

Toluidine blue stain


Toluidine blue stain
Renaut Body
  Rounded
  Filamentous layers: Variable structure
  Rounded sub-structures
  Cells, Scattered

Toluidine blue stain

Toluidine blue stain


Alcian blue stain

Alcian blue stain

Renaut Bodies: Internal


H&E stain
Renaut Bodies: Internal
  Within endoneurium
  Shape: Irregular
  Contain occasional axon

Gomori trichrome stain

Congo red stain

Gomori trichrome stain
Renaut Bodies: Internal
  Within endoneurium
  Shape: Irregular
  Contain: Irregular extracellular material; Cells; Occasional axon

Congo red stain

Renaut Bodies: Contain mucopolysaccharides (Alcian blue positive)

Alcian blue stain
Renaut Bodies: Contain mucopolysaccharides (Alcian blue positive)

Alcian blue stain

Renaut body: Renaut illustration


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References
1. Can J Neurol Sci 2017;44:184-189, J Neuropathol Exp Neurol 1973;32:334-343
2. Renaut J. Système hyalin de soutènement des centres nerveux et de quelques organes des sens. Arch Physiol Normale et Pathologique (Paris). 1881;8:846-59.

3/25/2017