fig2

Figure 2. Axial scan of the ulnar nerve in a multifocal motor neuropathy (MMN) patient in Guyon's canal (a), forearm (b), elbow (c) and upper-arm (d) showing a pathological cross sectional area enlargement at all anatomic sites, when compared to the reference values of our lab.[13] This finding may reflect the immune-mediated patchy multifocal demyelination occurring in MMN