01485nas a2200205   4500000000100000008004100001653001600042653001500058653001200073100001100085700001000096700001000106700001100116700001100127245005000138300001100188490000700199520105900206022001401265       2016                            d10aUlnar nerve10aSonography10aleprosy1 aWang Z1 aLiu D1 aLei Y1 aYang Z1 aWang W00aUlnar nerve sonography in leprosy neuropathy.  a137-400 v433 a<p>A 23-year-old woman presented with a half-year history of right&nbsp;forearm&nbsp;sensory and motor&nbsp;dysfunction. Ultrasound imaging revealed definite thickening of the right ulnar nerve trunk and inner epineurium, along with heterogeneous hypoechogenicity and unclear nerve fiber bundle. Color Doppler exhibited a rich blood supply, which was clearly different from the normal ulnar nerve presentation with a scarce blood supply. The patient subsequently underwent needle aspiration of the right ulnar nerve, and histopathological examination confirmed that granulomatous&nbsp;nodules&nbsp;had formed with a large number&nbsp;of infiltrating lymphocytes and&nbsp;a plurality of epithelioid&nbsp;cells in the fibrous connective&nbsp;tissues,&nbsp;with visible atypical&nbsp;foam cells and proliferous vascularization, consistent with&nbsp;leprosy. Our report will familiarize readers with the characteristic sonographic features of the ulnar nerve in leprosy, particularly because of the decreasing incidence of leprosy in&nbsp;recent years.</p>
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