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Washington University Experience | PERIPHERAL NEUROPATHY | 20 PSEUDO-ONION BULBS | 9A2 PseudoOB (Case 9) Plastic 20X
Plastic sections show severe loss of myelinated axons (with loss of large myelinated axons predominating) and both regenerative clusters and myelinated axons with thinned myelin for axon caliber are identified which are evidence of prior axonal degeneration and regeneration. There are scattered macrophages, however there is no evidence of definitive onion-bulb formation, rather aggregates thought to represent POB. (Plastic section)
