{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T07:07:17Z","timestamp":1779433637420,"version":"3.53.1"},"reference-count":19,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"\n Background:<\/jats:title>\n Meningiomas are common, benign intracranial tumors, while meningoencephaloceles are rare congenital or acquired anomalies commonly associated with a dural defect. Their association is exceptional and poses a diagnostic and therapeutic challenge.<\/jats:p>\n <\/jats:sec>\n \n Case Description:<\/jats:title>\n \n We present a case of a 35-year-old female patient who presented with chronic headaches, blindness, and decreased hearing for 2 years. An Ear-Nose-Throat (ENT) examination revealed a right endonasal mass on nasofibroscopy. Brain magnetic resonance imaging showed a large right temporo-parietal lesion with features suggestive of a meningioma, and a right endonasal lesion extending into the frontal lobe through a bone defect in the ethmoid bone, suggesting a meningoencephalocele. The meningioma was surgically excised (Simpson II), and histo-pathology confirmed a World Health Organization grade I meningothelial meningioma. Three months after surgery, the patient presented with right rhino-liquorrhea, and a decision to endoscopically treat the meningo-encephalocele was made, as well as repair the dural defect in ENT. The postoperative period was marked by failure of the dural closure, evidenced by the appearance of a compressive pneumocephalus and\n Pseudomonas aeruginosa<\/jats:italic>\n meningitis. A transcranial approach allowed for effective repair with immediate cessation of the rhinoliquorrhea. Resorption of the pneumocephalus was observed 1 month after surgery by a follow-up computed tomography scan.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusion:<\/jats:title>\n The association of a meningioma with a meningoencephalocele is extremely rare. The persistence of a dural defect exposes the patient to serious infectious complications. This case illustrates the complexity of managing such a combination and highlights the importance of early diagnosis, rigorous follow-up, and effective repair of any dural defect.<\/jats:p>\n <\/jats:sec>","DOI":"10.25259\/sni_1436_2025","type":"journal-article","created":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T06:30:07Z","timestamp":1779431407000},"page":"309","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A rare combination of a meningioma and an ethmoidal meningoencephalocele with osteo-dural defect: Diagnostic and therapeutic challenges"],"prefix":"10.25259","volume":"17","author":[{"given":"Dzeutouo Fobasso","family":"Ornella","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Principal Hospital of Dakar, Military Teaching Hospital, Dakar, Senegal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ababacar Sall","family":"Basse","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Principal Hospital of Dakar, Military Teaching Hospital, Dakar, Senegal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thierno Boubacar","family":"Diallo","sequence":"additional","affiliation":[{"name":"Department of ENT, Principal Hospital of Dakar, Military Teaching Hospital, Dakar, Senegal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Souleymane","family":"Diallo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Principal Hospital of Dakar, Military Teaching Hospital, Dakar, Senegal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sagar","family":"Diop","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Principal Hospital of Dakar, Military Teaching Hospital, Dakar, Senegal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ibrahima","family":"Tine","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Principal Hospital of Dakar, Military Teaching Hospital, Dakar, Senegal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdou Azize","family":"Diop","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Principal Hospital of Dakar, Military Teaching Hospital, Dakar, Senegal"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"10894","published-online":{"date-parts":[[2026,5,22]]},"reference":[{"key":"10.25259\/SNI_1436_2025\/ref-1","doi-asserted-by":"crossref","first-page":"398","DOI":"10.1016\/j.wneu.2019.02.045","article-title":"Brain herniation into nasal cavity secondary to large convexity meningioma","volume":"125","author":"Ali Akhaddar","year":"2019","journal-title":"World Neurosurg"},{"key":"10.25259\/SNI_1436_2025\/ref-2","doi-asserted-by":"crossref","first-page":"739","DOI":"10.1016\/S0221-0363(09)74730-4","article-title":"Imaging management of osteo-dural defects: Report of a rare case of spontaneous ethmoidal breach","volume":"90","author":"Blanpain","year":"2009","journal-title":"J Radiol"},{"key":"10.25259\/SNI_1436_2025\/ref-3","doi-asserted-by":"crossref","first-page":"2161","DOI":"10.2217\/fon-2018-0006","article-title":"An overview of meningiomas","volume":"14","author":"Buerki","year":"2018","journal-title":"Future Oncol"},{"key":"10.25259\/SNI_1436_2025\/ref-4","doi-asserted-by":"crossref","first-page":"39","DOI":"10.2176\/nmccrj.cr.2020-0074","article-title":"A rare case of intracerebral pneumocephalus caused by preexisting multiple bone defects and encephalocele after resection of meningioma","volume":"8","author":"Dan","year":"2021","journal-title":"NMC Case Rep J"},{"key":"10.25259\/SNI_1436_2025\/ref-5","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/S0150-9861(04)96878-2","article-title":"Management of cerebrospinal fluid fistulae: Physiopathology, imaging and treatment","volume":"31","author":"Domengie","year":"2004","journal-title":"J Neuroradiol"},{"key":"10.25259\/SNI_1436_2025\/ref-6","doi-asserted-by":"crossref","first-page":"46","DOI":"10.3390\/jcm10010046","article-title":"Endoscopic skull base repair strategy for CSF leaks associated with pneumocephalus","volume":"10","author":"G\u00e2ta","year":"2020","journal-title":"J Clin Med"},{"key":"10.25259\/SNI_1436_2025\/ref-7","doi-asserted-by":"crossref","first-page":"e234703","DOI":"10.1136\/bcr-2020-234703","article-title":"Spontaneous transethmoidal meningoencephalocele presenting in the form of recurrent unilateral nasal discharge: Discussion of the diagnosis and endoscopic surgical management","volume":"13","author":"Hallak","year":"2020","journal-title":"BMJ Case Rep"},{"key":"10.25259\/SNI_1436_2025\/ref-8","doi-asserted-by":"crossref","first-page":"516","DOI":"10.2500\/ajr.2008.22.3223","article-title":"Intracranial complications before and after endoscopic skull base reconstruction","volume":"22","author":"Harvey","year":"2008","journal-title":"Am J Rhinol"},{"key":"10.25259\/SNI_1436_2025\/ref-9","doi-asserted-by":"crossref","first-page":"452","DOI":"10.1002\/lary.22475","article-title":"Endoscopic skull base reconstruction of large dural defects: A systematic review of published evidence","volume":"122","author":"Harvey","year":"2012","journal-title":"Laryngoscope"},{"key":"10.25259\/SNI_1436_2025\/ref-10","doi-asserted-by":"crossref","first-page":"702","DOI":"10.1016\/j.jocn.2004.08.027","article-title":"Transethmoidal intranasal meningoencephalocele in an adult with recurrent meningitis","volume":"12","author":"Hasegawa","year":"2005","journal-title":"J Clin Neurosci"},{"key":"10.25259\/SNI_1436_2025\/ref-11","doi-asserted-by":"crossref","first-page":"392","DOI":"10.1016\/j.anl.2014.02.006","article-title":"Endoscopic resection of intranasal meningo-encephalocele accompanying meningioma","volume":"41","author":"Hsu","year":"2014","journal-title":"Auris Nasus Larynx"},{"key":"10.25259\/SNI_1436_2025\/ref-12","doi-asserted-by":"crossref","first-page":"239","DOI":"10.1055\/s-0032-1325636","article-title":"Endoscopic endonasal versus open repair of anterior skull base CSF leak, meningocele, and encephalocele: A systematic review of outcomes","volume":"74","author":"Komotar","year":"2013","journal-title":"J Neurol Surg A Cent Eur Neurosurg"},{"key":"10.25259\/SNI_1436_2025\/ref-13","doi-asserted-by":"crossref","first-page":"322","DOI":"10.2176\/nmc.45.322","article-title":"Transethmoidal meningoencephalocele in an elderly woman. Case report","volume":"45","author":"Kubo","year":"2005","journal-title":"Neurol Med Chir (Tokyo)"},{"key":"10.25259\/SNI_1436_2025\/ref-14","doi-asserted-by":"crossref","first-page":"CNS72","DOI":"10.2217\/cns-2021-0003","article-title":"Meningioma: Not always a benign tumor. A review of advances in the treatment of meningiomas","volume":"10","author":"Maggio","year":"2021","journal-title":"CNS Oncol"},{"key":"10.25259\/SNI_1436_2025\/ref-15","first-page":"e24797","article-title":"Combined open surgical and endoscopic approach for management of a meningoencephalocele after iatrogenic perforation of the anterior skull base in a young infant","volume":"14","author":"Mercea","year":"2022","journal-title":"Cureus"},{"key":"10.25259\/SNI_1436_2025\/ref-16","doi-asserted-by":"crossref","first-page":"138","DOI":"10.1055\/s-0038-1676621","article-title":"Cerebrospinal fluid rhinorrhea due to transethmoidal encephalocele following occipital meningioma resection in an adult: A case report","volume":"80","author":"Radovnick\u00fd","year":"2019","journal-title":"J Neurol Surg Part Cent Eur Neurosurg"},{"key":"10.25259\/SNI_1436_2025\/ref-17","doi-asserted-by":"crossref","first-page":"1742","DOI":"10.1093\/neuonc\/noae082","article-title":"Meningioma: International consortium on meningiomas consensus review on scientific advances and treatment paradigms for clinicians, researchers, and patients","volume":"26","author":"Wang","year":"2024","journal-title":"Neuro Oncol"},{"key":"10.25259\/SNI_1436_2025\/ref-18","first-page":"e10457","article-title":"Delayed cerebrospinal fluid rhinorrhea associated with ethmoidal encephalocele after resection of remote meningioma","volume":"12","author":"Weingarten","year":"2020","journal-title":"Cureus"},{"key":"10.25259\/SNI_1436_2025\/ref-19","doi-asserted-by":"crossref","first-page":"3238297","DOI":"10.1155\/2016\/3238297","article-title":"Spontaneous transethmoidal meningoceles in adults: Case series with emphasis on surgical management","volume":"2016","author":"Ziade","year":"2016","journal-title":"ScientificWorldJournal"}],"container-title":["Surgical Neurology International"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/surgicalneurologyint.com\/a-rare-combination-of-a-meningioma-and-an-ethmoidal-meningoencephalocele-with-osteo-dural-defect-diagnostic-and-therapeutic-challenges\/","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/surgicalneurologyint.com\/surgicalint-articles\/a-rare-combination-of-a-meningioma-and-an-ethmoidal-meningoencephalocele-with-osteo-dural-defect-diagnostic-and-therapeutic-challenges\/","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T06:30:11Z","timestamp":1779431411000},"score":1,"resource":{"primary":{"URL":"http:\/\/surgicalneurologyint.com\/surgicalint-articles\/a-rare-combination-of-a-meningioma-and-an-ethmoidal-meningoencephalocele-with-osteo-dural-defect-diagnostic-and-therapeutic-challenges\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,5,22]]},"references-count":19,"alternative-id":["10.25259\/SNI_1436_2025"],"URL":"https:\/\/doi.org\/10.25259\/sni_1436_2025","relation":{},"ISSN":["2152-7806","2229-5097"],"issn-type":[{"value":"2152-7806","type":"electronic"},{"value":"2229-5097","type":"print"}],"subject":[],"published":{"date-parts":[[2026,5,22]]},"article-number":"309"}}