Fig. 2From: Utility of somatosensory evoked potentials in the assessment of response to IVIG in a long-lasting case of chronic immune sensory polyradiculopathySural nerve biopsy. Cross section of plastic embedded left sural nerve stained with Toluidin blue showing slight axonal impairment without inflammatory infiltrate, a minimal reduction in myelinated fibers density with some isolated aspects of chronic (cluster) reinnervation (white arrow) and sporadic fibers in WallerianBack to article page