{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T22:55:20Z","timestamp":1769813720326,"version":"3.49.0"},"reference-count":13,"publisher":"Cambridge University Press (CUP)","issue":"12","license":[{"start":{"date-parts":[[2011,7,27]],"date-time":"2011-07-27T00:00:00Z","timestamp":1311724800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Laryngol. Otol."],"published-print":{"date-parts":[[2011,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S0022215111001824_sec1\"><jats:title>Objective:<\/jats:title><jats:p>We report an extremely rare case of vocal fold palsy secondary to vitamin B<jats:sub>12<\/jats:sub> deficiency.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215111001824_sec2\"><jats:title>Method:<\/jats:title><jats:p>Case report and English-Language review of the world literature concerning vitamin B<jats:sub>12<\/jats:sub> deficiency and its neurological manifestations. We discuss the physiological role of vitamin B and its specific relationship to the presented patient's symptoms.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215111001824_sec3\"><jats:title>Results:<\/jats:title><jats:p>We describe a rare instance of a patient presenting with bilateral lower limb weakness and unilateral vocal fold palsy, as a manifestation of vitamin B<jats:sub>12<\/jats:sub> deficiency. Quick recognition and treatment resulted in a full recovery.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215111001824_sec4\"><jats:title>Discussion:<\/jats:title><jats:p>To our knowledge, this is the first reported case of unilateral vocal fold palsy secondary to vitamin B<jats:sub>12<\/jats:sub> deficiency. Central and peripheral neuropathies have been described; however, other than the optic nerve, the cranial nerves are very rarely affected. It is important to consider vitamin B<jats:sub>12<\/jats:sub> deficiency as a cause, as speedy identification and treatment can help prevent permanent neurological damage.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0022215111001824","type":"journal-article","created":{"date-parts":[[2011,7,27]],"date-time":"2011-07-27T06:54:21Z","timestamp":1311749661000},"page":"1309-1311","source":"Crossref","is-referenced-by-count":12,"title":["Vitamin B<sub>12<\/sub> deficiency: an unusual cause of vocal fold palsy"],"prefix":"10.1017","volume":"125","author":[{"given":"R","family":"Green","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N","family":"Kara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H","family":"Cocks","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2011,7,27]]},"reference":[{"key":"S0022215111001824_ref10","first-page":"1218","volume-title":"Adams and Victor's Principles of Neurology","author":"Victor","year":"2001"},{"key":"S0022215111001824_ref6","doi-asserted-by":"publisher","DOI":"10.1093\/ageing\/afg109"},{"key":"S0022215111001824_ref7","doi-asserted-by":"publisher","DOI":"10.1016\/S1474-4422(06)70598-1"},{"key":"S0022215111001824_ref2","first-page":"60","article-title":"MRI in vitamin B12 deficiency myelopathy","volume":"26","author":"Locatelli","year":"1999","journal-title":"Can J Neurol Sci"},{"key":"S0022215111001824_ref5","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.281.6247.1036"},{"key":"S0022215111001824_ref4","doi-asserted-by":"publisher","DOI":"10.1016\/j.jns.2009.07.030"},{"key":"S0022215111001824_ref9","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2796.2003.01199.x"},{"key":"S0022215111001824_ref1","doi-asserted-by":"publisher","DOI":"10.1007\/s12264-009-0224-9"},{"key":"S0022215111001824_ref12","first-page":"273","article-title":"Vitamin B12 deficiency: a clinical and electrophysiological profile","volume":"43","author":"Puri","year":"2005","journal-title":"Electromyogr Clin Neurophysiol"},{"key":"S0022215111001824_ref3","doi-asserted-by":"publisher","DOI":"10.4065\/77.3.291"},{"key":"S0022215111001824_ref11","doi-asserted-by":"publisher","DOI":"10.1111\/j.1468-1331.2004.00778.x"},{"key":"S0022215111001824_ref8","first-page":"310","article-title":"Vitamin B12 and folate depletion in cognition: a review","volume":"52","author":"Moretti","year":"2004","journal-title":"Neurol India"},{"key":"S0022215111001824_ref13","doi-asserted-by":"publisher","DOI":"10.1016\/S0030-6665(03)00179-8"}],"container-title":["The Journal of Laryngology &amp; Otology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0022215111001824","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,4,26]],"date-time":"2019-04-26T23:14:01Z","timestamp":1556320441000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0022215111001824\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,7,27]]},"references-count":13,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2011,12]]}},"alternative-id":["S0022215111001824"],"URL":"https:\/\/doi.org\/10.1017\/s0022215111001824","relation":{},"ISSN":["0022-2151","1748-5460"],"issn-type":[{"value":"0022-2151","type":"print"},{"value":"1748-5460","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,7,27]]}}}