Neuromuscular

Denervated Schwann Cells


Büngner bands

Collagen Pockets


Büngner Bands


Bands of Büngner:
  Large Denervated
    Schwann Cell Bands



From: R E Schmidt MD

Denervated Schwann cells: Have normal Basal lamina outside surface membrane


Small & Large Axon loss: Severe


Neurofilaments (Green); P0 (Red)
Büngner Bands stain for P0 protein: In absence of myelin (Below)
Axon loss: No staining for large or small axons (Green)

Büngner bands
  p0 and NCAM co-localize in Schwann cells with no associated axons (Yellow)
  Small NCAM positive cells (Green) are associuated with remaining small, unmyelinated axons
  Normal: Many p0 positive myelin sheaths with no NCAM

NCAM (Green) & p0 (Red) stains

Loss of all myelinated axons

VvG stain

Loss of all axons

Neurofilament + Gomori stain

Non-Myelinating Schwann cells (NCAM stain): Remain present all through endoneurium

NCAM + Gomori

Collagen pockets





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12/28/2018