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Permanent location of the ulnar nerve anterior to the medial epicondyle is extremely rare, with only five cases reported in the literature. Using ultrasound elastography and diffusion tensor imaging with fiber tractography, we diagnosed a case in which ulnar nerve entrapment was associated with anterior nerve location. Surgical release confirmed the diagnosis and the patient was symptom free 3\u00a0months after surgery.<\/jats:p>","DOI":"10.1007\/s00276-021-02881-9","type":"journal-article","created":{"date-parts":[[2022,1,13]],"date-time":"2022-01-13T10:03:18Z","timestamp":1642068198000},"page":"201-205","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Diagnosis of ulnar nerve entrapment anterior to the medial epicondyle by ultrasound elastography and diffusion tensor imaging with fiber tractography: a case report"],"prefix":"10.1007","volume":"44","author":[{"given":"Guillaume","family":"Jaques","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fabio","family":"Becce","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jean-Baptiste","family":"Ledoux","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3753-1222","authenticated-orcid":false,"given":"S\u00e9bastien","family":"Durand","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2022,1,13]]},"reference":[{"key":"2881_CR1","doi-asserted-by":"publisher","first-page":"217","DOI":"10.1002\/tera.1420220211","volume":"22","author":"MA Aziz","year":"1980","unstructured":"Aziz MA (1980) Anatomical defects in a case of trisomy 13 with a D\/D translocation. 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