{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,12,7]],"date-time":"2024-12-07T05:05:25Z","timestamp":1733547925367,"version":"3.30.1"},"reference-count":13,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"\nBackground: <\/jats:title>\nIntracranial chondrosarcomas are malignant tumors that most commonly affect the clivus region. For tumors in this location, the extended endoscopic endonasal approach could offer an alternative route. We present a case of pons herniation after this technique.<\/jats:p>\n<\/jats:sec>\n\nCase Description: <\/jats:title>\nA 55-year-old female presented with a 6-month history of difficulty walking. The neurological evaluation showed asymmetric tetra paresis and involvement of the IX cranial nerve on the right side. Imaging exams showed a lesion at the upper clivus, with a possible diagnosis of chondrosarcoma. An extended transclival approach with partial resection and a multilayer closure were performed. The patient had a slight immediate improvement in muscle strength, and she was discharged home 5 days after surgery. Four weeks later, she evolved with worsening strength on the left side. A new image examination revealed an atypical protrusion of the pontine tissue through the bone defect at the opening of the clivus; a surgical revision was proposed, but the patient chose conservative management.<\/jats:p>\n<\/jats:sec>\n\nConclusion: <\/jats:title>\nPontine herniation is a rare complication with no defined cause. The use of a rigid material for closure could reduce the chances of this complication, but futher studies are necessary to reinforce that hypothesis.<\/jats:p>\n<\/jats:sec>","DOI":"10.25259\/sni_724_2024","type":"journal-article","created":{"date-parts":[[2024,12,6]],"date-time":"2024-12-06T07:24:40Z","timestamp":1733469880000},"page":"451","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Pons herniation after skull base chondrosarcoma surgery: A rare complication after transclival endoscopic endonasal approach"],"prefix":"10.25259","volume":"15","author":[{"given":"Lucas Costa","family":"Almeida","sequence":"first","affiliation":[{"name":"Department of Medicine, Federal University of Sergipe, Aracaju, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alice Caroline Alves","family":"da Silva","sequence":"additional","affiliation":[{"name":"Department of Medicine, Federal University of Sergipe, Aracaju, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matheus Assis","family":"de Almeida","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Hospital de Cirurgia, Aracaju, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paulo Eduardo","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"Department of Medicine, Federal University of Sergipe, Aracaju, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arthur Maynart Pereira","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Department of Medicine, Federal University of Sergipe, Aracaju, Brazil"},{"name":"Department of Neurosurgery, Hospital de Cirurgia, Aracaju, Brazil"},{"name":"Graduate Program in Health Sciences (PPGCS), Federal University of Sergipe, Aracaju, 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