Figure 2.

Toluidine blue-stained sections from nerves to teres minor. Nerves to teres minor and the posterior branch of axillary showed evidence of compression injury. Note thickened perineurium (a); reduced large myelinated axon density (a,c,d); Renaut bodies (a,b); oedematous, disrupted endoneurium (a,b,d); thick-walled blood vessels (c) regions of good (c) or sparse (d) best density of small thinly myelinated (*) and small unmyelinated axons (arrowheads) (in c), blood vessels (B), endoneurium (e), perineurium (P), Renaut bodies (RB), and spidery fibroblasts (^). Bar = 200 μm (a), 20 μm (b–d).