{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,29]],"date-time":"2026-01-29T22:34:28Z","timestamp":1769726068318,"version":"3.49.0"},"reference-count":90,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"13","license":[{"start":{"date-parts":[[2025,9,29]],"date-time":"2025-09-29T00:00:00Z","timestamp":1759104000000},"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":[[2025,9,29]]},"abstract":"\n BACKGROUND<\/jats:title>\n Peripheral ophthalmic artery aneurysms (POAAs) arising from the main trunk or branches of the ophthalmic artery (OphA) are extremely rare. However, their epidemiology and optimal management remain poorly understood. The authors report a rare case of a symptomatic POAA caused by arterial dissection that was successfully treated using endovascular therapy, leading to favorable visual recovery.<\/jats:p>\n <\/jats:sec>\n \n OBSERVATIONS<\/jats:title>\n A 77-year-old woman presented with sudden-onset visual impairment in the right eye. Ophthalmological examination revealed a defect in the right visual field. CT angiography revealed a fusiform aneurysm in the right intraorbital OphA. Digital subtraction angiography revealed a pearl and string sign, consistent with a dissecting aneurysm. A balloon test occlusion (BTO) of the OphA origin confirmed collateral circulation from the external carotid artery. Internal trapping of the OphA was performed under general anesthesia. Postoperatively, the patient\u2019s visual function gradually improved, and complete recovery was achieved within 3 months.<\/jats:p>\n <\/jats:sec>\n \n LESSONS<\/jats:title>\n Although POAAs are exceptionally rare, they may lead to significant visual dysfunction owing to optic nerve compression. When visual symptoms are present, prompt intervention may reverse the symptoms. Preoperative assessment of collateral circulation using BTO is essential for treatment planning. Internal trapping may be an effective strategy when sufficient collateral flow is confirmed.<\/jats:p>\n \n https:\/\/thejns.org\/doi\/10.3171\/CASE25483<\/jats:ext-link>\n <\/jats:p>\n <\/jats:sec>","DOI":"10.3171\/case25483","type":"journal-article","created":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T00:02:23Z","timestamp":1759795343000},"source":"Crossref","is-referenced-by-count":0,"title":["Endovascular treatment for a symptomatic dissecting ophthalmic artery aneurysm occurring in the orbit: illustrative case"],"prefix":"10.3171","volume":"10","author":[{"given":"Kohei","family":"Izumihara","sequence":"first","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1009-6216","authenticated-orcid":true,"given":"Jun","family":"Haruma","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kenji","family":"Sugiu","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fukiko","family":"Baba","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juntaro","family":"Fujita","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuichi","family":"Hirata","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuta","family":"Sotome","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-3277-6434","authenticated-orcid":true,"given":"Masato","family":"Kawakami","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9699-916X","authenticated-orcid":true,"given":"Ryu","family":"Kimura","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1054-0612","authenticated-orcid":true,"given":"Masafumi","family":"Hiramatsu","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shota","family":"Tanaka","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"1","key":"bib1","series-title":"Sci Rep","first-page":"9206","article-title":"Flow-diverting devices in the treatment of unruptured ophthalmic segment aneurysms at a mean clinical follow-up of 5 years","volume":"11","author":"Kunert","year":"2021","unstructured":"Kunert PW\u00f3jtowicz K\u017by\u0142kowski JFlow-diverting devices in the treatment of unruptured ophthalmic segment aneurysms at a mean clinical follow-up of 5 years. 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