{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T15:14:17Z","timestamp":1783437257977,"version":"3.54.6"},"reference-count":56,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"16","license":[{"start":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T00:00:00Z","timestamp":1776643200000},"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":[[2026,4,20]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>Radiation therapy is a mainstay in the management of medulloblastoma. However, it carries long-term side effects including radiation-induced tumors and vasculopathies. The authors report the first case of the occurrence of radiation-induced meningiomas, an intracranial aneurysm, and multiple cavernomas in a patient with a remote history of medulloblastoma. In addition, this is only the seventh reported radiation-associated superior cerebellar artery (SCA) aneurysm, the first such aneurysm to be associated with external beam RT and the first such aneurysm to be treated with microsurgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBSERVATIONS<\/jats:title>\n                    <jats:p>The patient was diagnosed with medulloblastoma when he was 4 years old and underwent surgery, craniospinal irradiation, and chemotherapy. He was well until 25 years later, when he presented with headache and left-sided weakness. Cranial imaging revealed multiple meningiomas and cavernomas. He underwent surgery to excise the largest meningioma in the right frontotemporal area. Two years later, he underwent another operation for a left frontal meningioma that increased in size. Two months postexcision, he presented with a subarachnoid hemorrhage from a ruptured right SCA aneurysm and underwent clipping. He was discharged well.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>LESSONS<\/jats:title>\n                    <jats:p>This case highlights the importance of long-term surveillance for patients treated with radiotherapy. However, the ideal follow-up duration and frequency of screening tests have yet to be determined.<\/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\/CASE25898\">https:\/\/thejns.org\/doi\/10.3171\/CASE25898<\/jats:ext-link>\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/case25898","type":"journal-article","created":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T14:23:06Z","timestamp":1783434186000},"source":"Crossref","is-referenced-by-count":0,"title":["Radiation-induced meningiomas, cerebral aneurysm, and multiple cavernomas 2 decades after radiotherapy for medulloblastoma: illustrative case"],"prefix":"10.3171","volume":"11","author":[{"given":"Almira A.","family":"Dayrit","sequence":"first","affiliation":[{"name":"Division of Neurosurgery, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Agos-Gel R.","family":"Amasula","sequence":"additional","affiliation":[{"name":"Department of Radiology, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dan Philippe C.","family":"Nicer","sequence":"additional","affiliation":[{"name":"Department of Radiology, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathleen Joy O.","family":"Khu","sequence":"additional","affiliation":[{"name":"Division of Neurosurgery, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gerardo D.","family":"Legaspi","sequence":"additional","affiliation":[{"name":"Division of Neurosurgery, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"1","key":"bib1","series-title":"Neurochirurgie","first-page":"83","article-title":"Late effects of craniospinal irradiation for medulloblastomas in paediatric patients","volume":"67","author":"Bernier","year":"2021","unstructured":"BernierVKleinO.Late effects of craniospinal irradiation for medulloblastomas in paediatric patients. 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