{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T16:06:27Z","timestamp":1776096387927,"version":"3.50.1"},"reference-count":18,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"14","license":[{"start":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T00:00:00Z","timestamp":1775433600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Neurosurg Case Lessons"],"published-print":{"date-parts":[[2026,4,6]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>Ischemic stroke caused by anterior inferior cerebellar artery (AICA) dissection is rare, and cases limited to cerebellar infarction without brainstem involvement are particularly uncommon. AICA territory ischemia may initially present with audiovestibular symptoms, posing a diagnostic challenge by mimicking peripheral otological disorders.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBSERVATIONS<\/jats:title>\n                    <jats:p>A 32-year-old woman presented with sudden sensorineural hearing loss, vertigo, and peripheral facial nerve palsy. A peripheral otological disorder was initially suspected; however, careful neurological examination revealed marked unsteadiness and torsional nystagmus, prompting brain MRI. Imaging demonstrated a focal cerebellar infarction without brainstem involvement. Follow-up CT angiography and digital subtraction angiography identified an isolated dissection of the proximal segment of the AICA. Despite improvement in facial nerve palsy and gait disturbance, the sensorineural hearing loss persisted.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>LESSONS<\/jats:title>\n                    <jats:p>Peripheral otological symptoms do not exclude central vascular disease. Isolated AICA dissection may present without brainstem infarction and be occult on initial MRA; serial vascular imaging is mandatory when neurological findings are atypical.<\/jats:p>\n                    <jats:p>\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"https:\/\/thejns.org\/doi\/10.3171\/CASE2695\">https:\/\/thejns.org\/doi\/10.3171\/CASE2695<\/jats:ext-link>\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/case2695","type":"journal-article","created":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T10:04:35Z","timestamp":1775642675000},"source":"Crossref","is-referenced-by-count":0,"title":["Ischemic cerebellar infarction due to isolated anterior inferior cerebellar artery dissection mimicking peripheral otological symptoms: illustrative case"],"prefix":"10.3171","volume":"11","author":[{"given":"Shin","family":"Nemoto","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Teikyo University Mizonokuchi Hospital, Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ririko","family":"Takeda","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Teikyo University Mizonokuchi Hospital, Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yutaro","family":"Jinushi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Teikyo University Mizonokuchi Hospital, Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuya","family":"Ogura","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Teikyo University Mizonokuchi Hospital, Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Makoto","family":"Nakane","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Teikyo University Mizonokuchi Hospital, Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"5","key":"bib1","series-title":"Arch NeurPsych","first-page":"765","article-title":"Occlusion of the anterior inferior cerebellar artery","volume":"49","author":"Adams","year":"1943","unstructured":"Adams RD.Occlusion of the anterior inferior cerebellar artery. Arch NeurPsych. 1943;49(5):765-770. doi:10.1001\/ARCHNEURPSYC.1943.02290170135010"},{"issue":"1-2","key":"bib2","series-title":"J Neurol Sci","first-page":"105","article-title":"Sudden deafness with vertigo as a sole manifestation of anterior inferior cerebellar artery infarction","volume":"222","author":"Lee","year":"2004","unstructured":"Lee HAhn BHBaloh RW.Sudden deafness with vertigo as a sole manifestation of anterior inferior cerebellar artery infarction. J Neurol Sci. 2004;222(1-2):105-107. doi:10.1016\/j.jns.2004.04.005"},{"issue":"12","key":"bib3","series-title":"Stroke","first-page":"2807","article-title":"Sudden deafness and anterior inferior cerebellar artery infarction","volume":"33","author":"Lee","year":"2002","unstructured":"Lee HSohn SIJung DKSudden deafness and anterior inferior cerebellar artery infarction. Stroke. 2002;33(12):2807-2812. doi:10.1161\/01.str.0000038692.17290.24"},{"issue":"3","key":"bib4","series-title":"Laryngoscope","first-page":"556","article-title":"Anterior inferior cerebellar artery infarction presenting with sudden hearing loss and vertigo","volume":"117","author":"Son","year":"2007","unstructured":"Son EJBang JHKang JG.Anterior inferior cerebellar artery infarction presenting with sudden hearing loss and vertigo. Laryngoscope. 2007;117(3):556-558. doi:10.1097\/MLG.0b013e3180303ed0"},{"issue":"11","key":"bib5","series-title":"JAMA Neurol","first-page":"1246","article-title":"Spontaneous AICA dissection presenting with isolated audiovestibular loss","volume":"80","author":"Han","year":"2023","unstructured":"Han SKKim BSHwang G.Spontaneous AICA dissection presenting with isolated audiovestibular loss. JAMA Neurol. 2023;80(11):1246-1247. doi:10.1001\/jamaneurol.2023.3427"},{"issue":"1","key":"bib6","series-title":"Ann Otol Rhinol Laryngol","first-page":"13","article-title":"Internal auditory artery supply to the petrous bone","volume":"81","author":"Mazzoni","year":"1972","unstructured":"Mazzoni A.Internal auditory artery supply to the petrous bone. Ann Otol Rhinol Laryngol. 1972;81(1):13-21. doi:10.1177\/000348947208100103"},{"issue":"4 Pt 1","key":"bib7","series-title":"Ann Otol Rhinol Laryngol","first-page":"261","article-title":"Clinical diagnosis of anterior inferior cerebellar artery thrombosis. Autopsy and temporal bone histopathologic study","volume":"99","author":"Hinojosa","year":"1990","unstructured":"Hinojosa RKohut RI.Clinical diagnosis of anterior inferior cerebellar artery thrombosis. Autopsy and temporal bone histopathologic study. Ann Otol Rhinol Laryngol. 1990;99(4 Pt 1):261-272. doi:10.1177\/000348949009900403"},{"issue":"2","key":"bib8","series-title":"Auris Nasus Larynx","first-page":"244","article-title":"AICA syndrome with facial palsy following vertigo and acute sensorineural hearing loss","volume":"39","author":"Ikegami-Takada","year":"2012","unstructured":"Ikegami-Takada TIzumikawa MDoi TTakada YTomoda K.AICA syndrome with facial palsy following vertigo and acute sensorineural hearing loss. Auris Nasus Larynx. 2012;39(2):244-248. doi:10.1016\/j.anl.2011.07.015"},{"issue":"2","key":"bib9","series-title":"J Neurol Neurosurg Psychiatry","first-page":"137","article-title":"The anterior inferior cerebellar artery; its variations, pontine distribution, and significance in the surgery of cerebellopontine angle tumors","volume":"12","author":"Atkinson","year":"1949","unstructured":"Atkinson WJ.The anterior inferior cerebellar artery; its variations, pontine distribution, and significance in the surgery of cerebellopontine angle tumors. J Neurol Neurosurg Psychiatry. 1949;12(2):137-151. doi:10.1136\/jnnp.12.2.137"},{"issue":"5","key":"bib1","series-title":"Arch NeurPsych","first-page":"765","article-title":"Occlusion of the anterior inferior cerebellar artery","volume":"49","author":"Adams","year":"1943","unstructured":"Adams RD.Occlusion of the anterior inferior cerebellar artery. Arch NeurPsych. 1943;49(5):765-770. doi:10.1001\/ARCHNEURPSYC.1943.02290170135010"},{"issue":"1-2","key":"bib2","series-title":"J Neurol Sci","first-page":"105","article-title":"Sudden deafness with vertigo as a sole manifestation of anterior inferior cerebellar artery infarction","volume":"222","author":"Lee","year":"2004","unstructured":"Lee HAhn BHBaloh RW.Sudden deafness with vertigo as a sole manifestation of anterior inferior cerebellar artery infarction. J Neurol Sci. 2004;222(1-2):105-107. doi:10.1016\/j.jns.2004.04.005"},{"issue":"12","key":"bib3","series-title":"Stroke","first-page":"2807","article-title":"Sudden deafness and anterior inferior cerebellar artery infarction","volume":"33","author":"Lee","year":"2002","unstructured":"Lee HSohn SIJung DKSudden deafness and anterior inferior cerebellar artery infarction. 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JAMA Neurol. 2023;80(11):1246-1247. doi:10.1001\/jamaneurol.2023.3427"},{"issue":"1","key":"bib6","series-title":"Ann Otol Rhinol Laryngol","first-page":"13","article-title":"Internal auditory artery supply to the petrous bone","volume":"81","author":"Mazzoni","year":"1972","unstructured":"Mazzoni A.Internal auditory artery supply to the petrous bone. Ann Otol Rhinol Laryngol. 1972;81(1):13-21. doi:10.1177\/000348947208100103"},{"issue":"4 Pt 1","key":"bib7","series-title":"Ann Otol Rhinol Laryngol","first-page":"261","article-title":"Clinical diagnosis of anterior inferior cerebellar artery thrombosis. Autopsy and temporal bone histopathologic study","volume":"99","author":"Hinojosa","year":"1990","unstructured":"Hinojosa RKohut RI.Clinical diagnosis of anterior inferior cerebellar artery thrombosis. Autopsy and temporal bone histopathologic study. Ann Otol Rhinol Laryngol. 1990;99(4 Pt 1):261-272. doi:10.1177\/000348949009900403"},{"issue":"2","key":"bib8","series-title":"Auris Nasus Larynx","first-page":"244","article-title":"AICA syndrome with facial palsy following vertigo and acute sensorineural hearing loss","volume":"39","author":"Ikegami-Takada","year":"2012","unstructured":"Ikegami-Takada TIzumikawa MDoi TTakada YTomoda K.AICA syndrome with facial palsy following vertigo and acute sensorineural hearing loss. Auris Nasus Larynx. 2012;39(2):244-248. doi:10.1016\/j.anl.2011.07.015"},{"issue":"2","key":"bib9","series-title":"J Neurol Neurosurg Psychiatry","first-page":"137","article-title":"The anterior inferior cerebellar artery; its variations, pontine distribution, and significance in the surgery of cerebellopontine angle tumors","volume":"12","author":"Atkinson","year":"1949","unstructured":"Atkinson WJ.The anterior inferior cerebellar artery; its variations, pontine distribution, and significance in the surgery of cerebellopontine angle tumors. J Neurol Neurosurg Psychiatry. 1949;12(2):137-151. doi:10.1136\/jnnp.12.2.137"}],"container-title":["Journal of Neurosurgery: Case Lessons"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg-case-lessons\/11\/14\/article-CASE2695.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg-case-lessons\/11\/14\/article-CASE2695.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg-case-lessons\/11\/14\/article-CASE2695.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T15:26:04Z","timestamp":1776093964000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg-case-lessons\/11\/14\/article-CASE2695.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4,6]]},"references-count":18,"journal-issue":{"issue":"14"},"URL":"https:\/\/doi.org\/10.3171\/case2695","relation":{},"ISSN":["2694-1902"],"issn-type":[{"value":"2694-1902","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,4,6]]}}}