{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T08:30:53Z","timestamp":1793349053751,"version":"4.5.0"},"reference-count":0,"publisher":"Korean Neurosurgical Society","issue":"6","license":[{"start":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T00:00:00Z","timestamp":1780358400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/3.0\/"}],"content-domain":{"domain":["jkns.or.kr"],"crossmark-restriction":true},"short-container-title":["J Korean Neurosurg Soc"],"published-print":{"date-parts":[[2026,11,1]]},"abstract":"<jats:p>Anterior clinoid process (ACP) mucoceles are extremely rare lesions that may pose significant surgical challenges due to their proximity to the internal carotid artery (ICA). We report a case of a 54-year-old male with an ACP mucocele who presented with rapidly progressive visual loss in the left eye. Endoscopic endonasal approach (EEA) was performed, during which inadvertent ICA injury occurred following bone removal, resulting in massive bleeding that required immediate gauze packing and termination of the procedure. Despite unremarkable early postoperative imaging, a pseudoaneurysm detected 1 week later at cavernous ICA and rapidly enlarged with findings of a carotid-cavernous fistula. Urgent endovascular treatment with a flow-diverting stent and adjunctive coil embolization was performed and the gauze packing was removed 1 week after endovascular treatment. Follow-up magnetic resonance angiography and digital subtraction angiography at 1 year confirmed successful vessel remodeling and sustained exclusion of the pseudoaneurysm. This case highlights the risk of ICA injury during EEA for ACP lesions, the importance of careful postoperative imaging surveillance for delayed pseudoaneurysm formation, and the effectiveness of a combined endovascular reconstructive strategy in managing unstable pseudoaneurysms.<\/jats:p>","DOI":"10.3340\/jkns.2026.0124","type":"journal-article","created":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T04:09:09Z","timestamp":1780373349000},"page":"998-1005","update-policy":"https:\/\/doi.org\/10.3340\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Delayed Internal Carotid Artery Pseudoaneurysm Following Endoscopic Endonasal Approach for Anterior Clinoid Process Mucocele Treated with Flow Diversion and Adjunctive Coil Embolization : A Case Report"],"prefix":"10.3340","volume":"69","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0376-6784","authenticated-orcid":true,"given":"Yeong-Jin","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5410-7418","authenticated-orcid":true,"given":"You-Sub","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9288-5368","authenticated-orcid":true,"given":"Dong-Hoon","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3935-0361","authenticated-orcid":true,"given":"Kyung-Hwa","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Pathology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8598-3127","authenticated-orcid":true,"given":"Woong","family":"Yoon","sequence":"additional","affiliation":[{"name":"Department of Radiology, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1892","container-title":["Journal of Korean Neurosurgical Society"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/jkns.or.kr\/upload\/pdf\/jkns-2026-0124.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/jkns.or.kr\/journal\/view.php?doi=10.3340\/jkns.2026.0124","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/jkns.or.kr\/upload\/pdf\/jkns-2026-0124.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T07:42:27Z","timestamp":1793346147000},"score":1,"resource":{"primary":{"URL":"http:\/\/jkns.or.kr\/journal\/view.php?doi=10.3340\/jkns.2026.0124"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,11,1]]},"references-count":0,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2026,11]]}},"URL":"https:\/\/doi.org\/10.3340\/jkns.2026.0124","relation":{},"ISSN":["2005-3711","1598-7876"],"issn-type":[{"value":"2005-3711","type":"print"},{"value":"1598-7876","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,11,1]]},"assertion":[{"value":"2026-04-15","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-05-29","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-06-02","order":2,"name":"published","label":"Published online","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-11-01","order":3,"name":"published","label":"Print publication","group":{"name":"publication_history","label":"Publication History"}}]}}