{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T23:51:20Z","timestamp":1790639480907,"version":"4.1.0"},"reference-count":14,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JNS"],"published-print":{"date-parts":[[2009,3]]},"abstract":"<jats:p>A 75-year-old woman underwent Gamma Knife surgery (GKS) for a vestibular schwannoma. Eight years after GKS, she suffered sudden onset of headache. Computed tomography revealed diffuse subarachnoid hemorrhage around the cisterns of the posterior fossa. Right vertebral artery angiography showed an aneurysm arising from the lateral pontomedullary segment of the left anterior inferior cerebellar artery. The aneurysm was not located at a branching site. Trapping of the distal anterior inferior cerebellar artery aneurysm was performed, and the aneurysm was removed. The pathological features of this aneurysm are discussed. This aneurysm was diagnosed as a pseudoaneurysm pathologically. This is the first report of aneurysm formation with pathological findings following GKS for a vestibular schwannoma.<\/jats:p>","DOI":"10.3171\/2008.8.jns08177","type":"journal-article","created":{"date-parts":[[2008,10,31]],"date-time":"2008-10-31T15:15:47Z","timestamp":1225466147000},"page":"543-546","source":"Crossref","is-referenced-by-count":38,"title":["Ruptured pseudoaneurysm following Gamma Knife surgery for a vestibular schwannoma"],"prefix":"10.3171","volume":"110","author":[{"given":"Yousuke","family":"Akamatsu","sequence":"first","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takayuki","family":"Sugawara","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shigeki","family":"Mikawa","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Atsushi","family":"Saito","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sadafumi","family":"Ono","sequence":"additional","affiliation":[{"name":"Pathology, Iwate Prefecture Central Hospital, Morioka City; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazuo","family":"Takayama","sequence":"additional","affiliation":[{"name":"Pathology, Iwate Prefecture Central Hospital, Morioka City; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hidefumi","family":"Jokura","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Jiro Suzuki Memorial Gamma House, Furukawa Seiryo Hospital, Sendai, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hirofumi","family":"Seki","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"b1-1100543","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"1141","DOI":"10.3171\/jns.1984.61.6.1141","article-title":"Multiple fusiform intracranial aneurysms following curative radiation therapy for suprasellar germinoma","volume":"61","author":"Azzarelli","year":"1984"},{"key":"b2-1100543","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"545","DOI":"10.3171\/jns.1989.70.4.0545","article-title":"Cerebral aneurysms following radiotherapy for medulloblastoma","volume":"70","author":"Benson","year":"1989"},{"key":"b3-1100543","series-title":"Br J Neurosurg","doi-asserted-by":"publisher","first-page":"575","DOI":"10.3109\/02688699308995083","article-title":"Intracranial aneurysm formation following radiotherapy","volume":"7","author":"Casey","year":"1993"},{"key":"b4-1100543","series-title":"Angiology","doi-asserted-by":"publisher","first-page":"147","DOI":"10.1177\/000331978703800209","article-title":"Radiation-induced aneurysm of the basilar artery","volume":"38","author":"Gomori","year":"1987"},{"key":"b5-1100543","series-title":"AJNR Am J Neuroradiol","first-page":"226","article-title":"Induction and subsequent rupture of aneurysms of the circle of Willis after radiation therapy in Ehlers-Danlos syndrome: a plausible hypothesis","volume":"17","author":"Holodny","year":"1996"},{"key":"b6-1100543","series-title":"Acta Radiol","first-page":"37","article-title":"Intracranial aneurysm following radiation therapy for medulloblastoma: a case report and review of the literature","volume":"38","author":"Jensen","year":"1997"},{"key":"b7-1100543","series-title":"J Laryngol Otol","doi-asserted-by":"publisher","first-page":"137","DOI":"10.1017\/S002221510012242X","article-title":"Clinical records. 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