{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,2]],"date-time":"2025-08-02T18:30:49Z","timestamp":1754159449030,"version":"3.41.2"},"reference-count":11,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec id=\"st1\">\n<jats:title>Background: <\/jats:title>\n<jats:p>Internal carotid artery dissection (ICAD) is an uncommon but important cause of ischemic stroke in young adults, particularly in Asian populations where its incidence is relatively low. While ICAD typically presents with headache, neck pain, or ischemic symptoms, it can also lead to isolated cranial nerve involvement, complicating the diagnostic process.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st2\">\n<jats:title>Case Description: <\/jats:title>\n<jats:p>We report the case of a 45-year-old woman who presented with isolated right-sided glossopharyngeal nerve symptoms \u2013 specifically, ageusia and pharyngeal discomfort \u2013 along with mild posterior neck pain. Initial evaluation by otolaryngology failed to identify the etiology. Subsequent imaging at our hospital revealed a spontaneous dissection of the right internal carotid artery extending from the third cervical spinal cord level to the proximal petrous segment. Magnetic resonance angiography and digital subtraction angiography confirmed the diagnosis of ICAD. Conservative management with antiplatelet therapy (aspirin 100 mg\/day) led to symptom improvement, and follow-up imaging after 180 days demonstrated near-complete resolution of the dissection.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st3\">\n<jats:title>Conclusion: <\/jats:title>\n<jats:p>This case is noteworthy due to the absence of cerebral ischemic findings and the isolated involvement of the glossopharyngeal nerve, likely due to localized anterolateral expansion of the dissection cavity compressing the pharyngeal branch of the nerve. Although mild styloid process elongation was observed, there was no radiological evidence suggesting Eagle syndrome. This case emphasizes the importance of considering ICAD in the differential diagnosis of lower cranial nerve palsies, even in the absence of stroke or typical neurological signs.<\/jats:p>\n<\/jats:sec>","DOI":"10.25259\/sni_528_2025","type":"journal-article","created":{"date-parts":[[2025,7,25]],"date-time":"2025-07-25T10:23:41Z","timestamp":1753439021000},"page":"304","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Internal carotid artery dissection presenting with glossopharyngeal nerve dysfunction: A case report"],"prefix":"10.25259","volume":"16","author":[{"given":"Tomoya","family":"Sofue","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Megumi","family":"Chatani","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroyuki","family":"Ohnishi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"10894","published-online":{"date-parts":[[2025,7,25]]},"reference":[{"key":"10.25259\/SNI_528_2025\/ref-1","doi-asserted-by":"crossref","first-page":"922","DOI":"10.1590\/S0004-282X2008000600036","article-title":"Spontaneous cervical artery dissection: An update on clinical and diagnostic aspects","volume":"66","author":"Campos-Herrera","year":"2008","journal-title":"Arq Neuropsiquiatr"},{"key":"10.25259\/SNI_528_2025\/ref-2","doi-asserted-by":"crossref","first-page":"399","DOI":"10.1177\/23969873221133905","article-title":"ESO guideline for the management of extracranial and intracranial artery dissection","volume":"8","author":"Debette","year":"2023","journal-title":"Eur Stroke J"},{"key":"10.25259\/SNI_528_2025\/ref-3","doi-asserted-by":"crossref","first-page":"4465","DOI":"10.1212\/WNL.0000000000204002","article-title":"A case of internal carotid artery dissection presenting with dysgeusia (P12-5.014)","volume":"100","author":"Joseph","year":"2023","journal-title":"Neurology"},{"key":"10.25259\/SNI_528_2025\/ref-4","first-page":"608","article-title":"Villaret's syndrome caused by internal carotid artery dissection","volume":"51","author":"Mizutani","year":"2011","journal-title":"Clin Neurol"},{"key":"10.25259\/SNI_528_2025\/ref-5","doi-asserted-by":"crossref","first-page":"356","DOI":"10.1212\/WNL.46.2.356","article-title":"Cranial nerve palsy in spontaneous dissection of the extracranial internal carotid artery","volume":"46","author":"Mokri","year":"1996","journal-title":"Neurology"},{"key":"10.25259\/SNI_528_2025\/ref-6","doi-asserted-by":"crossref","first-page":"279","DOI":"10.3995\/jstroke.10632","article-title":"Clinical features of internal carotid artery dissection with nonhemorrhagic onset","volume":"41","author":"Nagao","year":"2019","journal-title":"Jpn J Stroke"},{"key":"10.25259\/SNI_528_2025\/ref-7","doi-asserted-by":"crossref","first-page":"e110","DOI":"10.1212\/WNL.0000000000000266","article-title":"Teaching NeuroImages: Internal carotid artery dissection presenting as Villaret syndrome","volume":"82","author":"Okpala","year":"2014","journal-title":"Neurology"},{"key":"10.25259\/SNI_528_2025\/ref-8","doi-asserted-by":"crossref","first-page":"630","DOI":"10.1002\/ar.23924","article-title":"Morphological features of the glossopharyngeal nerve in the peripharyngeal space, the oropharynx, and the tongue","volume":"302","author":"Sakamoto","year":"2019","journal-title":"Anat Rec (Hoboken)"},{"key":"10.25259\/SNI_528_2025\/ref-9","doi-asserted-by":"crossref","first-page":"37","DOI":"10.3121\/cmr.2018.1452","article-title":"A case of isolated unilateral glossopharyngeal nerve palsy","volume":"18","author":"Savarimuthu","year":"2020","journal-title":"Clin Med Res"},{"key":"10.25259\/SNI_528_2025\/ref-10","doi-asserted-by":"crossref","first-page":"691","DOI":"10.1136\/jnnp.64.5.691","article-title":"Dysgeusia resulting from internal carotid dissection. 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