{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,18]],"date-time":"2026-02-18T23:43:04Z","timestamp":1771458184391,"version":"3.50.1"},"reference-count":8,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec id=\"st1\">\n<jats:title>Background:<\/jats:title>\n<jats:p>Intradural disc herniations (IDHs) are rare occurrences (0.26\u20130.30%), and most frequently involve the lumbar spine at the L4\u2013L5 level. Here, we present a patient with an L1\u2013L2 IDH and reviewed the current literature.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st2\">\n<jats:title>Case Description:<\/jats:title>\n<jats:p>A 65-year-old female presented with the acute onset of bilateral paraparesis accompanied by urinary dysfunction. The lumbar MRI showed a mass at the L1\u2013L2 level with caudal migration, accompanied by a positive \u201chawk-beak\u201d sign. At surgery, consisting of a L1\u2013L2 laminectomy, a large IDH was encountered responsible for marked cauda equina\/root compression. Postoperatively, the patient immediately fully recovered. The literature we identified cited just seven similar studies of L1\u2013L2 IDH.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st3\">\n<jats:title>Conclusion:<\/jats:title>\n<jats:p>In a 65-year-old female, an IDH was anticipated at the L1\u2013L2 level due to the combined MR findings of a large L1\u2013L2 mass with caudal migration and the positive \u201chawk-beak\u201d sign.<\/jats:p>\n<\/jats:sec>","DOI":"10.25259\/sni_108_2020","type":"journal-article","created":{"date-parts":[[2020,4,11]],"date-time":"2020-04-11T13:55:19Z","timestamp":1586613319000},"page":"67","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Intradural lumbar disc herniations at the L1\u2013L2 level: A case study and literature review"],"prefix":"10.25259","volume":"11","author":[{"given":"Giancarlo","family":"Ponzo","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, ARNAS Garibaldi, Via Palermo, Catania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Massimo","family":"Furnari","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, ARNAS Garibaldi, Via Palermo, Catania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giuseppe Emmanuele","family":"Umana","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Cannizzaro Hospital, Via Messina, Catania,"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Massimiliano","family":"Giuffrida","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, ARNAS Garibaldi, Via Palermo, Catania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giovanni Federico","family":"Nicoletti","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, ARNAS Garibaldi, Via Palermo, Catania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gianluca","family":"Scalia","sequence":"additional","affiliation":[{"name":"Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, Division of Neurosurgery, University of Messina, Via Consolare Valeria, Messina Sicily, Italy."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"10894","published-online":{"date-parts":[[2020,4,11]]},"reference":[{"key":"10.25259\/SNI_108_2020\/ref-1","doi-asserted-by":"crossref","first-page":"196","DOI":"10.25259\/SNI_452_2019","article-title":"Intradural disc herniation at the L1-L2 level: A case report and literature review","volume":"10","author":"Apr\u00edgio","year":"2019","journal-title":"Surg Neurol Int"},{"key":"10.25259\/SNI_108_2020\/ref-2","doi-asserted-by":"crossref","first-page":"312","DOI":"10.1179\/2045772311Y.0000000007","article-title":"Intradural disk herniation at L1-L2 Report of two cases","volume":"34","author":"Arnold","year":"2011","journal-title":"J Spinal Cord Med"},{"key":"10.25259\/SNI_108_2020\/ref-3","doi-asserted-by":"crossref","first-page":"42","DOI":"10.3171\/2009.3.SPINE08161","article-title":"Unusual sequestered disc fragments simulating spinal tumors and other space-occupying lesions. Clinical article","volume":"11","author":"Carvi y Nievas","year":"2009","journal-title":"J Neurosurg Spine"},{"key":"10.25259\/SNI_108_2020\/ref-4","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1016\/S0967-5868(99)90062-0","article-title":"Magnetic resonance imaging of intradural lumbar disc herniation","volume":"6","author":"Hida","year":"1999","journal-title":"J Clin Neurosci"},{"key":"10.25259\/SNI_108_2020\/ref-5","doi-asserted-by":"crossref","first-page":"E463","DOI":"10.1097\/01.brs.0000142433.21912.0d","article-title":"Intradural disc herniation and epidural gas: Something more than a casual association?","volume":"29","author":"Hidalgo-Ovejero","year":"2004","journal-title":"Spine (Phila Pa 1976)"},{"key":"10.25259\/SNI_108_2020\/ref-6","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1007\/PL00011967","article-title":"Intradural lumbar disc herniation: Report of two cases","volume":"24","author":"Koc","year":"2001","journal-title":"Neurosurg Rev"},{"key":"10.25259\/SNI_108_2020\/ref-7","first-page":"134","article-title":"Intradural herniation of intervertebral disc at the level of lumbar 1-lumbar 2","volume":"17","author":"Ozt\u00fcrk","year":"2007","journal-title":"Turk Neurosurg"},{"key":"10.25259\/SNI_108_2020\/ref-8","doi-asserted-by":"crossref","first-page":"117","DOI":"10.3171\/jns.1981.55.1.0117","article-title":"Intradural disc rupture. Report of two cases","volume":"55","author":"Smith","year":"1981","journal-title":"J Neurosurg"}],"container-title":["Surgical Neurology International"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/surgicalneurologyint.com\/intradural-lumbar-disc-herniations-at-the-l1-l2-level-a-case-study-and-literature-review\/","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/surgicalneurologyint.com\/surgicalint-articles\/intradural-lumbar-disc-herniations-at-the-l1-l2-level-a-case-study-and-literature-review\/","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,4,11]],"date-time":"2020-04-11T13:55:23Z","timestamp":1586613323000},"score":1,"resource":{"primary":{"URL":"http:\/\/surgicalneurologyint.com\/surgicalint-articles\/intradural-lumbar-disc-herniations-at-the-l1-l2-level-a-case-study-and-literature-review\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,4,11]]},"references-count":8,"alternative-id":["10.25259\/SNI_108_2020"],"URL":"https:\/\/doi.org\/10.25259\/sni_108_2020","relation":{},"ISSN":["2152-7806"],"issn-type":[{"value":"2152-7806","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,4,11]]},"article-number":"67"}}