{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T23:56:01Z","timestamp":1775692561789,"version":"3.50.1"},"reference-count":20,"publisher":"Springer Science and Business Media LLC","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,4,8]]},"DOI":"10.7759\/cureus.106677","type":"journal-article","created":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T22:55:28Z","timestamp":1775688928000},"source":"Crossref","is-referenced-by-count":0,"title":["Foramen Magnum Decompression for Retro-Odontoid Pseudotumor in an Elderly Patient With Chiari Malformation Type I: A Case Report"],"prefix":"10.7759","author":[{"given":"Ryunosuke","family":"Yoshihara","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasufumi","family":"Ohtake","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michiru","family":"Katayama","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hirohiko","family":"Nakamura","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1179\/016164111X12962202723689","article-title":"National Institutes of Health Chiari Research Conference: state of the research and new directions","volume":"33","author":"Labuda R","year":"2011","unstructured":"Labuda R, Loth F, Slavin K. National Institutes of Health Chiari Research Conference: state of the research and new directions. Neurol Res. 2011, 33:227-31. 10.1179\/016164111X12962202723689","journal-title":"Neurol Res"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1097\/00006123-199905000-00042","article-title":"Chiari I malformation redefined: clinical and radiographic findings for 364 symptomatic patients","volume":"44","author":"Milhorat TH","year":"1999","unstructured":"Milhorat TH, Chou MW, Trinidad EM, Kula RW, Mandell M, Wolpert C, Speer MC. Chiari I malformation redefined: clinical and radiographic findings for 364 symptomatic patients. Neurosurgery. 1999, 44:1005-17. 10.1097\/00006123-199905000-00042","journal-title":"Neurosurgery"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.161.2.3763907","article-title":"Pseudotumor of the craniovertebral junction associated with chronic subluxation: MR imaging studies","volume":"161","author":"Sze G","year":"1986","unstructured":"Sze G, Brant-Zawadzki MN, Wilson CR, Norman D, Newton TH. Pseudotumor of the craniovertebral junction associated with chronic subluxation: MR imaging studies. Radiology. 1986, 161:391-4. 10.1148\/radiology.161.2.3763907","journal-title":"Radiology"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.54.9.817","article-title":"Damaged ligaments at the craniocervical junction presenting as an extradural tumour: a differential diagnosis in the elderly","volume":"54","author":"Crockard HA","year":"1991","unstructured":"Crockard HA, Sett P, Geddes JF, Stevens JM, Kendall BE, Pringle JA. Damaged ligaments at the craniocervical junction presenting as an extradural tumour: a differential diagnosis in the elderly. J Neurol Neurosurg Psychiatry. 1991, 54:817-21. 10.1136\/jnnp.54.9.817","journal-title":"J Neurol Neurosurg Psychiatry"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1097\/BSD.0b013e318299f4d8","article-title":"Radiographic risk factors and surgical outcomes for retroodontoid pseudotumors","volume":"27","author":"Sono T","year":"2014","unstructured":"Sono T, Onishi E, Matsushita M. Radiographic risk factors and surgical outcomes for retroodontoid pseudotumors. J Spinal Disord Tech. 2014, 27:E193-8. 10.1097\/BSD.0b013e318299f4d8","journal-title":"J Spinal Disord Tech"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e31818acd27","article-title":"Radiographic analysis of the cervical spine in patients with retro-odontoid pseudotumors","volume":"34","author":"Chikuda H","year":"2009","unstructured":"Chikuda H, Seichi A, Takeshita K, et al.. Radiographic analysis of the cervical spine in patients with retro-odontoid pseudotumors. Spine (Phila Pa 1976). 2009, 34:E110-4. 10.1097\/BRS.0b013e31818acd27","journal-title":"Spine (Phila Pa 1976)"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-013-2681-0","article-title":"C1 laminectomy for retro-odontoid pseudotumor without atlantoaxial subluxation: review of seven consecutive cases","volume":"22","author":"Kakutani K","year":"2013","unstructured":"Kakutani K, Doita M, Yoshikawa M, et al.. C1 laminectomy for retro-odontoid pseudotumor without atlantoaxial subluxation: review of seven consecutive cases. Eur Spine J. 2013, 22:1119-26. 10.1007\/s00586-013-2681-0","journal-title":"Eur Spine J"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1179\/204577211X13207446293695","article-title":"International standards for neurological classification of spinal cord injury (revised 2011)","volume":"34","author":"Kirshblum SC","year":"2011","unstructured":"Kirshblum SC, Burns SP, Biering-Sorensen F, et al.. International standards for neurological classification of spinal cord injury (revised 2011). J Spinal Cord Med. 2011, 34:535-46. 10.1179\/204577211X13207446293695","journal-title":"J Spinal Cord Med"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.3171\/2014.10.PEDS14295","article-title":"Pediatric and adult Chiari malformation Type I surgical series 1965-2013: a review of demographics, operative treatment, and outcomes","volume":"15","author":"Arnautovic A","year":"2015","unstructured":"Arnautovic A, Splavski B, Boop FA, Arnautovic KI. Pediatric and adult Chiari malformation Type I surgical series 1965-2013: a review of demographics, operative treatment, and outcomes. J Neurosurg Pediatr. 2015, 15:161-77. 10.3171\/2014.10.PEDS14295","journal-title":"J Neurosurg Pediatr"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.3171\/foc.2001.11.1.2","article-title":"Definition of the adult Chiari malformation: a brief historical overview","volume":"11","author":"Bejjani GK","year":"2001","unstructured":"Bejjani GK. Definition of the adult Chiari malformation: a brief historical overview. Neurosurg Focus. 2001, 11:E1. 10.3171\/foc.2001.11.1.2","journal-title":"Neurosurg Focus"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1016\/j.jocn.2014.06.008","article-title":"Non-operative outcomes in Chiari I malformation patients","volume":"22","author":"Killeen A","year":"2015","unstructured":"Killeen A, Roguski M, Chavez A, Heilman C, Hwang S. Non-operative outcomes in Chiari I malformation patients. J Clin Neurosci. 2015, 22:133-8. 10.1016\/j.jocn.2014.06.008","journal-title":"J Clin Neurosci"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1016\/j.mehy.2021.110740","article-title":"A new hypothesis for the pathophysiology of symptomatic adult Chiari malformation Type I","volume":"158","author":"Labuda R","year":"2022","unstructured":"Labuda R, Nwotchouang BS, Ibrahimy A, Allen PA, Oshinski JN, Klinge P, Loth F. A new hypothesis for the pathophysiology of symptomatic adult Chiari malformation Type I. Med Hypotheses. 2022, 158:10.1016\/j.mehy.2021.110740","journal-title":"Med Hypotheses"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-199512000-00003","article-title":"Anatomic relation between the rectus capitis posterior minor muscle and the dura mater","volume":"20","author":"Hack GD","year":"1995","unstructured":"Hack GD, Koritzer RT, Robinson WL, Hallgren RC, Greenman PE. Anatomic relation between the rectus capitis posterior minor muscle and the dura mater. Spine. 1995, 20:2484-6. 10.1097\/00007632-199512000-00003","journal-title":"Spine"},{"key":"ref14","article-title":"The cervical myodural bridge, a review of literature and clinical implications","volume":"58","author":"Enix DE","year":"2014","unstructured":"Enix DE, Scali F, Pontell ME. The cervical myodural bridge, a review of literature and clinical implications. J Can Chiropr Assoc. 2014, 58:184-92.","journal-title":"J Can Chiropr Assoc"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-019-46444-w","article-title":"Evaluation of the structure of myodural bridges in an equine model of Ehlers-Danlos syndromes","volume":"9","author":"McElroy A","year":"2019","unstructured":"McElroy A, Rashmir A, Manfredi J, Sledge D, Carr E, Stopa E, Klinge P. Evaluation of the structure of myodural bridges in an equine model of Ehlers-Danlos syndromes. Sci Rep. 2019, 9:9978. 10.1038\/s41598-019-46444-w","journal-title":"Sci Rep"},{"key":"ref16","doi-asserted-by":"crossref","DOI":"10.2531\/spinalsurg.13.59","article-title":"A operative case of Chiari malformation type I in elderly patient","volume":"13","author":"Wada A","year":"1999","unstructured":"Wada A, Hara T, Tei Y, et al.. A operative case of Chiari malformation type I in elderly patient. Spinal Surgery. 1999, 13:59-62.","journal-title":"Spinal Surgery"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1038\/sj.sc.3101675","article-title":"Foramen magnum decompression for the treatment of Arnold Chiari malformation type I with associated syringomyelia in an elderly patient","volume":"43","author":"Takigami I","year":"2005","unstructured":"Takigami I, Miyamoto K, Kodama H, Hosoe H, Tanimoto S, Shimizu K. Foramen magnum decompression for the treatment of Arnold Chiari malformation type I with associated syringomyelia in an elderly patient. Spinal Cord. 2005, 43:249-51. 10.1038\/sj.sc.3101675","journal-title":"Spinal Cord"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.11477\/mf.1416202474","article-title":"A surgical case of Chiari malformation type I in elderly patient (Article in Japanese)","volume":"75","author":"Satake K","year":"2023","unstructured":"Satake K, Ito M, Honma H, Sonoda Y. A surgical case of Chiari malformation type I in elderly patient (Article in Japanese). Brain Nerve. 2023, 75:1071-5. 10.11477\/mf.1416202474","journal-title":"Brain Nerve"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.25259\/SNI_832_2024","article-title":"Impacts of type 1 Chiari malformation on elderly","volume":"15","author":"Badary A","year":"2024","unstructured":"Badary A, Atallah O. Impacts of type 1 Chiari malformation on elderly. Surg Neurol Int. 2024, 15:443. 10.25259\/SNI_832_2024","journal-title":"Surg Neurol Int"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.4103\/2152-7806.107904","article-title":"The need in dural graft suturing in Chiari I malformation decompression: a prospective, single-blind, randomized trial comparing sutured and sutureless duraplasty materials","volume":"4","author":"Williams LE","year":"2013","unstructured":"Williams LE, Vannemreddy PS, Watson KS, Slavin KV. The need in dural graft suturing in Chiari I malformation decompression: a prospective, single-blind, randomized trial comparing sutured and sutureless duraplasty materials. Surg Neurol Int. 2013, 4:26. 10.4103\/2152-7806.107904","journal-title":"Surg Neurol Int"}],"container-title":["Cureus"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cureus.com\/articles\/477828-foramen-magnum-decompression-for-retro-odontoid-pseudotumor-in-an-elderly-patient-with-chiari-malformation-type-i-a-case-report","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T22:55:29Z","timestamp":1775688929000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cureus.com\/articles\/477828-foramen-magnum-decompression-for-retro-odontoid-pseudotumor-in-an-elderly-patient-with-chiari-malformation-type-i-a-case-report"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4,8]]},"references-count":20,"URL":"https:\/\/doi.org\/10.7759\/cureus.106677","relation":{},"ISSN":["2168-8184"],"issn-type":[{"value":"2168-8184","type":"print"}],"subject":[],"published":{"date-parts":[[2026,4,8]]}}}