{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T16:07:51Z","timestamp":1776096471213,"version":"3.50.1"},"reference-count":32,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"1","license":[{"start":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T00:00:00Z","timestamp":1767571200000},"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":[[2026,1,5]]},"abstract":"\n BACKGROUND<\/jats:title>\n Arachnoid web (AW) is a rare entity characterized by a thickened band of arachnoid membrane on the dorsal surface of the spinal cord, often producing compressive myelopathy. The diagnosis is sometimes challenging, as imaging findings may be subtle.<\/jats:p>\n <\/jats:sec>\n \n OBSERVATIONS<\/jats:title>\n The authors report the case of a 29-year-old man who developed paraparesis with bladder and rectal dysfunction following a minor traffic accident. Imaging showed no fractures or intramedullary signal changes, with only subtle spinal cord anterior deviation at T7\u20138. Surgical exploration revealed a thickened arachnoid band compressing and tethering the spinal cord. Resection of the AW restored cord pulsation, and motor function improved postoperatively. Histopathology confirmed arachnoid tissue with collagen fibers, consistent with AW.<\/jats:p>\n <\/jats:sec>\n \n LESSONS<\/jats:title>\n Even with subtle imaging findings, AW should be suspected in trauma-related myelopathy, and timely surgical intervention can provide recovery.<\/jats:p>\n \n https:\/\/thejns.org\/doi\/10.3171\/CASE25734<\/jats:ext-link>\n <\/jats:p>\n <\/jats:sec>","DOI":"10.3171\/case25734","type":"journal-article","created":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T12:00:05Z","timestamp":1769083205000},"source":"Crossref","is-referenced-by-count":0,"title":["Arachnoid web presenting with acute myelopathy after minor trauma and subtle imaging findings: illustrative case"],"prefix":"10.3171","volume":"11","author":[{"given":"Shinichiro","family":"Tsukamoto","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"},{"name":"Department of Neurosurgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gaku","family":"Hidaka","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6010-1554","authenticated-orcid":true,"given":"Masashi","family":"Uchida","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuichiro","family":"Kushiro","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-4204-9747","authenticated-orcid":true,"given":"Sora","family":"Yazaki","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Risa","family":"Sakuyama","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"},{"name":"Department of Neurosurgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Takasuna","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidemichi","family":"Itoh","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takashi","family":"Matsumori","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5045-8077","authenticated-orcid":true,"given":"Ichiro","family":"Takumi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1148-1853","authenticated-orcid":true,"given":"Toshihiro","family":"Ueda","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7356-979X","authenticated-orcid":true,"given":"Hidetoshi","family":"Murata","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"2","key":"bib1","series-title":"J Neurosurg","first-page":"287","article-title":"Dorsal arachnoid web with spinal cord compression: variant of an arachnoid cyst? Report of two cases","volume":"93","author":"Paramore","year":"2000","unstructured":"Paramore CG.Dorsal arachnoid web with spinal cord compression: variant of an arachnoid cyst? Report of two cases. J Neurosurg. 2000;93(2)(suppl):287-290."},{"key":"bib2","series-title":"Surg Neurol Int","first-page":"108","article-title":"Atypical radiographic case of arachnoid web without scalpel sign","volume":"13","author":"Nagashima","year":"2022","unstructured":"Nagashima YNishimura YIto HAtypical radiographic case of arachnoid web without scalpel sign. Surg Neurol Int. 2022;13:108."},{"issue":"21","key":"bib3","series-title":"Neurology","first-page":"e150","article-title":"Mystery case: scalpel sign: dorsal thoracic arachnoid web","volume":"85","author":"Jayabal","year":"2015","unstructured":"Jayabal JNilsson CMuthu TChung KK.Mystery case: scalpel sign: dorsal thoracic arachnoid web. Neurology. 2015;85(21):e150-e151."},{"issue":"5","key":"bib4","series-title":"AJNR Am J Neuroradiol","first-page":"1104","article-title":"Dorsal thoracic arachnoid web and the \u201cscalpel sign\u201d: a distinct clinical-radiologic entity","volume":"34","author":"Reardon","year":"2013","unstructured":"Reardon MARaghavan PCarpenter-Bailey KDorsal thoracic arachnoid web and the \u201cscalpel sign\u201d: a distinct clinical-radiologic entity. AJNR Am J Neuroradiol. 2013;34(5):1104-1110."},{"issue":"4","key":"bib5","series-title":"Radiol Case Rep","first-page":"1552","article-title":"Scalpellum occulta: a rare case of dorsal spinal arachnoid web without the scalpel sign","volume":"19","author":"Choi","year":"2024","unstructured":"Choi JWDeSimone KEDacumos VMHoshide RRQiao YHui FK.Scalpellum occulta: a rare case of dorsal spinal arachnoid web without the scalpel sign. Radiol Case Rep. 2024;19(4):1552-1555."},{"issue":"2","key":"bib6","series-title":"Brain Circ","first-page":"89","article-title":"Considerations for delayed-onset spinal arachnoid web after intracranial subarachnoid hemorrhage","volume":"10","author":"Wong","year":"2024","unstructured":"Wong GPivazyan GBreton JMDowlati EFelbaum DR.Considerations for delayed-onset spinal arachnoid web after intracranial subarachnoid hemorrhage. Brain Circ. 2024;10(2):89-93."},{"issue":"2","key":"bib7","series-title":"J Spine Surg","first-page":"446","article-title":"Spinal arachnoid web\u2014a review article","volume":"4","author":"Ben Ali","year":"2018","unstructured":"Ben Ali HHamilton PZygmunt SYakoub KM.Spinal arachnoid web\u2014a review article. J Spine Surg. 2018;4(2):446-450."},{"issue":"8","key":"bib8","series-title":"Acta Neurochir (Wien)","first-page":"707","article-title":"Syringomyelia and the arachnoid web","volume":"145","author":"Brodbelt","year":"2003","unstructured":"Brodbelt ARStoodley MA.Syringomyelia and the arachnoid web. Acta Neurochir (Wien). 2003;145(8):707-711."},{"issue":"4","key":"bib9","series-title":"Radiol Case Rep","first-page":"1254","article-title":"Dorsal arachnoid web adjacent to paraspinal retained bullet: blunt post-traumatic etiology","volume":"19","author":"Campeau","year":"2024","unstructured":"Campeau NGFarnsworth PJ.Dorsal arachnoid web adjacent to paraspinal retained bullet: blunt post-traumatic etiology. Radiol Case Rep. 2024;19(4):1254-1257."},{"issue":"5","key":"bib10","series-title":"Neuroradiol J","first-page":"393","article-title":"Dorsal thoracic arachnoid web presenting as neuropathic pain: \u2018scalpel\u2019 sign found on MRI","volume":"29","author":"Aiyer","year":"2016","unstructured":"Aiyer REl-Sherif YVoutsinas L.Dorsal thoracic arachnoid web presenting as neuropathic pain: \u2018scalpel\u2019 sign found on MRI. Neuroradiol J. 2016;29(5):393-395."},{"issue":"5","key":"bib11","series-title":"Neurosurgery","first-page":"917","article-title":"Spinal arachnoid webs: presentation, natural history, and outcomes in 38 patients","volume":"89","author":"Laxpati","year":"2021","unstructured":"Laxpati NMalcolm JGTsemo GBSpinal arachnoid webs: presentation, natural history, and outcomes in 38 patients [presentation]. Neurosurgery. 2021;89(5):917-927."},{"issue":"1","key":"bib12","series-title":"Spine J","first-page":"126","article-title":"Spinal arachnoid web-a distinct entity of focal arachnopathy with favorable long-term outcome after surgical resection: analysis of a multicenter patient population","volume":"22","author":"Voglis","year":"2022","unstructured":"Voglis SRomagna AGermans MRSpinal arachnoid web-a distinct entity of focal arachnopathy with favorable long-term outcome after surgical resection: analysis of a multicenter patient population. Spine J. 2022;22(1):126-135."},{"issue":"2","key":"bib13","series-title":"Cureus","article-title":"Acute progressive spinal arachnoid web without the scalpel sign: a case report","volume":"17","author":"Nakamura","year":"2025","unstructured":"Nakamura SYoshida SKobayashi ISonoda TIndo M.Acute progressive spinal arachnoid web without the scalpel sign: a case report. Cureus. 2025;17(2):e78988."},{"issue":"11","key":"bib14","series-title":"J Neurosurg Case Lessons","first-page":"CASE23701","article-title":"Resection of an incidentally discovered spinal arachnoid web: illustrative case","volume":"7","author":"Vattipally","year":"2024","unstructured":"Vattipally VNAhmadi SWeber-Levine CResection of an incidentally discovered spinal arachnoid web: illustrative case. J Neurosurg Case Lessons. 2024;7(11):CASE23701."},{"key":"bib15","series-title":"Surg Neurol Int","article-title":"Surgical treatment of spinal arachnoid web: report of two cases and literature review","volume":"12","author":"Rodrigues","year":"2021","unstructured":"Rodrigues ABRodrigues DBQueiroz JWMSurgical treatment of spinal arachnoid web: report of two cases and literature review. Surg Neurol Int. 2021;12:316."},{"key":"bib16","series-title":"Surg Neurol Int","article-title":"Thoracic dorsal arachnoid web with rapid onset of symptoms: a report of two cases and brief review of the literature","volume":"12","author":"Hines","year":"2021","unstructured":"Hines TWang CDuttlinger CThoracic dorsal arachnoid web with rapid onset of symptoms: a report of two cases and brief review of the literature. Surg Neurol Int. 2021;12:323."},{"issue":"2","key":"bib1","series-title":"J Neurosurg","first-page":"287","article-title":"Dorsal arachnoid web with spinal cord compression: variant of an arachnoid cyst? Report of two cases","volume":"93","author":"Paramore","year":"2000","unstructured":"Paramore CG.Dorsal arachnoid web with spinal cord compression: variant of an arachnoid cyst? Report of two cases. J Neurosurg. 2000;93(2)(suppl):287-290."},{"key":"bib2","series-title":"Surg Neurol Int","first-page":"108","article-title":"Atypical radiographic case of arachnoid web without scalpel sign","volume":"13","author":"Nagashima","year":"2022","unstructured":"Nagashima YNishimura YIto HAtypical radiographic case of arachnoid web without scalpel sign. Surg Neurol Int. 2022;13:108."},{"issue":"21","key":"bib3","series-title":"Neurology","first-page":"e150","article-title":"Mystery case: scalpel sign: dorsal thoracic arachnoid web","volume":"85","author":"Jayabal","year":"2015","unstructured":"Jayabal JNilsson CMuthu TChung KK.Mystery case: scalpel sign: dorsal thoracic arachnoid web. Neurology. 2015;85(21):e150-e151."},{"issue":"5","key":"bib4","series-title":"AJNR Am J Neuroradiol","first-page":"1104","article-title":"Dorsal thoracic arachnoid web and the \u201cscalpel sign\u201d: a distinct clinical-radiologic entity","volume":"34","author":"Reardon","year":"2013","unstructured":"Reardon MARaghavan PCarpenter-Bailey KDorsal thoracic arachnoid web and the \u201cscalpel sign\u201d: a distinct clinical-radiologic entity. AJNR Am J Neuroradiol. 2013;34(5):1104-1110."},{"issue":"4","key":"bib5","series-title":"Radiol Case Rep","first-page":"1552","article-title":"Scalpellum occulta: a rare case of dorsal spinal arachnoid web without the scalpel sign","volume":"19","author":"Choi","year":"2024","unstructured":"Choi JWDeSimone KEDacumos VMHoshide RRQiao YHui FK.Scalpellum occulta: a rare case of dorsal spinal arachnoid web without the scalpel sign. Radiol Case Rep. 2024;19(4):1552-1555."},{"issue":"2","key":"bib6","series-title":"Brain Circ","first-page":"89","article-title":"Considerations for delayed-onset spinal arachnoid web after intracranial subarachnoid hemorrhage","volume":"10","author":"Wong","year":"2024","unstructured":"Wong GPivazyan GBreton JMDowlati EFelbaum DR.Considerations for delayed-onset spinal arachnoid web after intracranial subarachnoid hemorrhage. Brain Circ. 2024;10(2):89-93."},{"issue":"2","key":"bib7","series-title":"J Spine Surg","first-page":"446","article-title":"Spinal arachnoid web\u2014a review article","volume":"4","author":"Ben Ali","year":"2018","unstructured":"Ben Ali HHamilton PZygmunt SYakoub KM.Spinal arachnoid web\u2014a review article. J Spine Surg. 2018;4(2):446-450."},{"issue":"8","key":"bib8","series-title":"Acta Neurochir (Wien)","first-page":"707","article-title":"Syringomyelia and the arachnoid web","volume":"145","author":"Brodbelt","year":"2003","unstructured":"Brodbelt ARStoodley MA.Syringomyelia and the arachnoid web. Acta Neurochir (Wien). 2003;145(8):707-711."},{"issue":"4","key":"bib9","series-title":"Radiol Case Rep","first-page":"1254","article-title":"Dorsal arachnoid web adjacent to paraspinal retained bullet: blunt post-traumatic etiology","volume":"19","author":"Campeau","year":"2024","unstructured":"Campeau NGFarnsworth PJ.Dorsal arachnoid web adjacent to paraspinal retained bullet: blunt post-traumatic etiology. Radiol Case Rep. 2024;19(4):1254-1257."},{"issue":"5","key":"bib10","series-title":"Neuroradiol J","first-page":"393","article-title":"Dorsal thoracic arachnoid web presenting as neuropathic pain: \u2018scalpel\u2019 sign found on MRI","volume":"29","author":"Aiyer","year":"2016","unstructured":"Aiyer REl-Sherif YVoutsinas L.Dorsal thoracic arachnoid web presenting as neuropathic pain: \u2018scalpel\u2019 sign found on MRI. Neuroradiol J. 2016;29(5):393-395."},{"issue":"5","key":"bib11","series-title":"Neurosurgery","first-page":"917","article-title":"Spinal arachnoid webs: presentation, natural history, and outcomes in 38 patients","volume":"89","author":"Laxpati","year":"2021","unstructured":"Laxpati NMalcolm JGTsemo GBSpinal arachnoid webs: presentation, natural history, and outcomes in 38 patients [presentation]. Neurosurgery. 2021;89(5):917-927."},{"issue":"1","key":"bib12","series-title":"Spine J","first-page":"126","article-title":"Spinal arachnoid web-a distinct entity of focal arachnopathy with favorable long-term outcome after surgical resection: analysis of a multicenter patient population","volume":"22","author":"Voglis","year":"2022","unstructured":"Voglis SRomagna AGermans MRSpinal arachnoid web-a distinct entity of focal arachnopathy with favorable long-term outcome after surgical resection: analysis of a multicenter patient population. Spine J. 2022;22(1):126-135."},{"issue":"2","key":"bib13","series-title":"Cureus","article-title":"Acute progressive spinal arachnoid web without the scalpel sign: a case report","volume":"17","author":"Nakamura","year":"2025","unstructured":"Nakamura SYoshida SKobayashi ISonoda TIndo M.Acute progressive spinal arachnoid web without the scalpel sign: a case report. Cureus. 2025;17(2):e78988."},{"issue":"11","key":"bib14","series-title":"J Neurosurg Case Lessons","first-page":"CASE23701","article-title":"Resection of an incidentally discovered spinal arachnoid web: illustrative case","volume":"7","author":"Vattipally","year":"2024","unstructured":"Vattipally VNAhmadi SWeber-Levine CResection of an incidentally discovered spinal arachnoid web: illustrative case. J Neurosurg Case Lessons. 2024;7(11):CASE23701."},{"key":"bib15","series-title":"Surg Neurol Int","article-title":"Surgical treatment of spinal arachnoid web: report of two cases and literature review","volume":"12","author":"Rodrigues","year":"2021","unstructured":"Rodrigues ABRodrigues DBQueiroz JWMSurgical treatment of spinal arachnoid web: report of two cases and literature review. Surg Neurol Int. 2021;12:316."},{"key":"bib16","series-title":"Surg Neurol Int","article-title":"Thoracic dorsal arachnoid web with rapid onset of symptoms: a report of two cases and brief review of the literature","volume":"12","author":"Hines","year":"2021","unstructured":"Hines TWang CDuttlinger CThoracic dorsal arachnoid web with rapid onset of symptoms: a report of two cases and brief review of the literature. Surg Neurol Int. 2021;12:323."}],"container-title":["Journal of Neurosurgery: Case Lessons"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg-case-lessons\/11\/1\/article-CASE25734.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg-case-lessons\/11\/1\/article-CASE25734.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg-case-lessons\/11\/1\/article-CASE25734.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T15:27:08Z","timestamp":1776094028000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg-case-lessons\/11\/1\/article-CASE25734.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,1,5]]},"references-count":32,"journal-issue":{"issue":"1"},"URL":"https:\/\/doi.org\/10.3171\/case25734","relation":{},"ISSN":["2694-1902"],"issn-type":[{"value":"2694-1902","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,1,5]]}}}