{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T16:06:48Z","timestamp":1776096408931,"version":"3.50.1"},"reference-count":46,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"14","license":[{"start":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T00:00:00Z","timestamp":1775433600000},"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":[[2026,4,6]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>Petrous apex cephaloceles (PACs) are infrequent lesions mostly diagnosed as incidental findings. Rare cases may manifest as trigeminal neuralgia (TN).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBSERVATIONS<\/jats:title>\n                    <jats:p>A 51-year-old female presented with a 19-year history of TN. Investigative imaging revealed herniation of the trigeminal nerve into Meckel\u2019s cave through a right-sided petrous apex defect. The patient underwent a right preauricular middle cranial fossa craniotomy and subtemporal extradural approach to access Meckel\u2019s cave. The nerve was released and repositioned, and a fat graft was used to obliterate the petrous apex defect to prevent recurrence. The procedure successfully relieved the patient\u2019s severe pain. At the 6-week postoperative follow-up visit, the patient was free from TN symptoms with no surgical complications. At 18 months, the patient was still free from TN symptoms.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>LESSONS<\/jats:title>\n                    <jats:p>To the best of the authors\u2019 knowledge, there are few reported cases of TN caused by PACs in the literature. This study highlights the importance of considering PACs as a rare but potentially reversible cause of TN, especially in patients with refractory symptoms whose imaging demonstrates no neurovascular conflict. Moreover, the effectiveness of surgical intervention in treating this condition is reinforced.<\/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\/CASE25460\">https:\/\/thejns.org\/doi\/10.3171\/CASE25460<\/jats:ext-link>\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/case25460","type":"journal-article","created":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T10:04:57Z","timestamp":1775642697000},"source":"Crossref","is-referenced-by-count":0,"title":["Surgical management of petrous apex trigeminal nerve herniation causing trigeminal neuralgia with long-term outcome: illustrative case"],"prefix":"10.3171","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0142-3569","authenticated-orcid":true,"given":"Jonathan A.","family":"Tangsrivimol","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, The Ohio State University Wexner Medical Center, Columbus, Ohio"},{"name":"Department of Neurosurgery, Chulabhorn Hospital, Chulabhorn Royal Academy, Bangkok, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8365-8032","authenticated-orcid":true,"given":"Guilherme","family":"Finger","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, The Ohio State University Wexner Medical Center, Columbus, Ohio"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthieu D.","family":"Weber","sequence":"additional","affiliation":[{"name":"The Ohio State University College of Medicine, The Ohio State University, Columbus, Ohio"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0009-5049","authenticated-orcid":true,"given":"Kyle C.","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, The Ohio State University Wexner Medical Center, Columbus, Ohio"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0214-2339","authenticated-orcid":true,"given":"Daniel M.","family":"Prevedello","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, The Ohio State University Wexner Medical Center, Columbus, Ohio"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"3","key":"bib1","series-title":"Int J Neuroradiol","first-page":"166","article-title":"A practical imaging approach to petrous apex lesions","volume":"5","author":"Moore","year":"1999","unstructured":"Moore EDavidson HCHarnsberger HRShelton C.A practical imaging approach to petrous apex lesions. 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