{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T01:05:41Z","timestamp":1779843941928,"version":"3.53.1"},"reference-count":34,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"21","license":[{"start":{"date-parts":[[2026,5,25]],"date-time":"2026-05-25T00:00:00Z","timestamp":1779667200000},"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":[[2026,5,25]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>Interdural spinal cysts are rare lesions located between the layers of the dura mater, not included in traditional spinal cyst classifications. Only 12 cases have been reported in the literature, with two located in the lumbar region. This case represents the first reported lumbar interdural cyst developing as a direct complication of a single lumbar puncture.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBSERVATIONS<\/jats:title>\n                    <jats:p>A 44-year-old woman developed severe radicular pain 1 week after undergoing a diagnostic lumbar puncture; the pain was posture dependent, worsening when upright and improving when recumbent. MRI revealed a cystic lesion at L3\u20134 without nerve root compression. CT myelography showed delayed contrast filling, indicating communication with the subarachnoid space. Surgical exploration confirmed an interdural cyst. Both dural layers were sutured to obliterate the cyst and the defect of the inner dural layer. Her radicular pain resolved postoperatively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>LESSONS<\/jats:title>\n                    <jats:p>Interdural spinal cysts can form as a rare complication of lumbar puncture, causing persistent spinal pain. Such cysts should be considered in patients with unexplained, posture-dependent pain after lumbar puncture, as their dynamic nature may elude standard imaging. Suturing both dural layers to obliterate the cyst and repair the defect of the inner dural layer can effectively resolve the symptoms.<\/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\/CASE2652\">https:\/\/thejns.org\/doi\/10.3171\/CASE2652<\/jats:ext-link>\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/case2652","type":"journal-article","created":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T14:52:30Z","timestamp":1779288750000},"source":"Crossref","is-referenced-by-count":0,"title":["Interdural spinal cyst following lumbar puncture: illustrative case"],"prefix":"10.3171","volume":"11","author":[{"given":"Anja","family":"\u0160erbec","sequence":"first","affiliation":[{"name":"Medical Faculty, University of Ljubljana"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Igor J.","family":"Kocijan\u010di\u010d","sequence":"additional","affiliation":[{"name":"Department of Diagnostic and Interventional Neuroradiology, Clinical Institute of Radiology, University Medical Centre, Ljubljana"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fajko","family":"Bajrovi\u0107","sequence":"additional","affiliation":[{"name":"Department of Neurology, University Medical Centre, Ljubljana"},{"name":"Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matic","family":"Munda","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University Medical Centre, Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Milica G.","family":"Kramberger","sequence":"additional","affiliation":[{"name":"Medical Faculty, University of Ljubljana"},{"name":"Department of Neurology, University Medical Centre, Ljubljana"},{"name":"Department of Neurobiology, Care Sciences and Society, Division of Clinical Geriatrics, Karolinska Institutet, Huddinge, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Borut","family":"Prestor","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University Medical Centre, Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrej","family":"Por\u010dnik","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University Medical Centre, Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"bib1","series-title":"Brain Spine","first-page":"100904","article-title":"Spinal arachnoid cysts: a case series & systematic review of the literature","volume":"2","author":"Kalsi","year":"2022","unstructured":"Kalsi PHejrati NCharalampidis ASpinal arachnoid cysts: a case series & systematic review of the literature. Brain Spine. 2022;2:100904. doi:10.1016\/j.bas.2022.100904"},{"issue":"2","key":"bib2","series-title":"Neurospine","first-page":"117","article-title":"Spinal epidermoid tumors: case report and review of the literature","volume":"15","author":"Beechar","year":"2018","unstructured":"Beechar VBZinn POHeck KASpinal epidermoid tumors: case report and review of the literature. Neurospine. 2018;15(2):117-122. doi:10.14245\/ns.1836014.007"},{"issue":"3","key":"bib3","series-title":"J Neurosurg","first-page":"366","article-title":"Updated assessment and current classification of spinal meningeal cysts","volume":"68","author":"Nabors","year":"1988","unstructured":"Nabors MWPait TGByrd EBUpdated assessment and current classification of spinal meningeal cysts. J Neurosurg. 1988;68(3):366-377. doi:10.3171\/jns.1988.68.3.0366"},{"issue":"3","key":"bib4","series-title":"Neurosurgery","first-page":"287","article-title":"Interdural cyst of the lumbosacral region","volume":"14","author":"Done","year":"1984","unstructured":"Done SLHayman LANew PFDavis KRChapman PH.Interdural cyst of the lumbosacral region. Neurosurgery. 1984;14(3):287-294. doi:10.1227\/00006123-198403000-00005"},{"issue":"2","key":"bib5","series-title":"J Spine Pract","first-page":"70","article-title":"Interdural spinal arachnoid cyst case study and review of literature with operative technical considerations","volume":"4","author":"Kramer","year":"2025","unstructured":"Kramer AHMilton CLesha EDugan JEEskin LNBoucher A.Interdural spinal arachnoid cyst case study and review of literature with operative technical considerations. J Spine Pract. 2025;4(2):70-78. doi:10.18502\/jsp.v4i2.17702"},{"issue":"11","key":"bib6","series-title":"Neurol Med Chir (Tokyo)","first-page":"1035","article-title":"Symptomatic isolated lumbar interdural arachnoid cyst","volume":"50","author":"Lee","year":"2010","unstructured":"Lee JHJung TGKim HSJang JSLee SH.Symptomatic isolated lumbar interdural arachnoid cyst. Neurol Med Chir (Tokyo). 2010;50(11):1035-1038. doi:10.2176\/nmc.50.1035"},{"key":"bib7","series-title":"World Neurosurg","first-page":"688.e9","article-title":"Interdural spinal cyst: a rare clinical entity","volume":"88","author":"Sajjad","year":"2016","unstructured":"Sajjad JYousaf IBermingham NKaar G.Interdural spinal cyst: a rare clinical entity. 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