{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T15:02:02Z","timestamp":1777561322439,"version":"3.51.4"},"reference-count":30,"publisher":"SAGE Publications","issue":"10","license":[{"start":{"date-parts":[[2023,2,12]],"date-time":"2023-02-12T00:00:00Z","timestamp":1676160000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2023,2,12]],"date-time":"2023-02-12T00:00:00Z","timestamp":1676160000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Ear Nose Throat J"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Schwannomas are common nerve sheath tumors and may occur anywhere in the body. 4% of head and neck schwannomas occur in the sinonasal cavity, and fewer yet have an intracranial component, making these presentations extremely rare. Furthermore, schwannomas present with nonspecific imaging signs and can only be definitively differentiated via histopathologic review, leading to misdiagnosis as various nasal tumors. We aim to conduct a review of published literature on sinonasal schwannomas with and without intracranial extension and provide additional case representations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A literature review was conducted using the PubMed Database with the terms \u201csinonasal schwannoma,\u201d \u201cintracranial,\u201d \u201canterior skull base,\u201d and \u201cschwannoma.\u201d Results were reviewed, and additional cases identified were referenced and included in the study. Inclusion criteria were any case with intracranial extension of the schwannoma. There were no exclusion criteria. Review data was compiled into Excel and used for data analysis and comparison. Additionally, a search was done within our institution to identify additional cases of sinonasal schwannoma.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We identified 17 cases of sinonasal schwannoma with intracranial extension, five from our institution and twelve from literature. Analysis revealed: 8 females (47%), 9 males (53%), 9 patients presented with headaches (53%), 6 patients presented with anosmia (35%), 4 patients presented with nasal obstruction (24%), and 2 patients with no symptoms (12%). Mean age and median were 39.4 \u00b1 10.1 and 40, respectively. For treatment, 4 patients underwent endoscopic resection (24%), 11 underwent craniotomy (65%), and data was unavailable for 2 patients. Post-treatment complications occurred in 6 patients, 5 had CSF leaks (29%) and 1 had a hematoma (6%).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>We identified and discussed 17 cases of sinonasal schwannoma with intracranial extension. We hope our review provides insight for clinicians to maintain schwannoma as a potential differential when evaluating nasal and anterior skull base masses.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/01455613221150573","type":"journal-article","created":{"date-parts":[[2023,2,12]],"date-time":"2023-02-12T21:44:33Z","timestamp":1676238273000},"page":"645-650","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["Sinonasal Schwannomas: Imaging Findings and Review of Literature"],"prefix":"10.1177","volume":"104","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5600-441X","authenticated-orcid":false,"given":"Pavan","family":"Brahmbhatt","sequence":"first","affiliation":[{"name":"Radiology, Mayo Clinic Florida, Jacksonville, FL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tushar","family":"Kumar","sequence":"additional","affiliation":[{"name":"Radiology, Mayo Clinic Florida, Jacksonville, FL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3400-7123","authenticated-orcid":false,"given":"Alok A.","family":"Bhatt","sequence":"additional","affiliation":[{"name":"Radiology, Mayo Clinic Florida, Jacksonville, FL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Prasanna","family":"Vibhute","sequence":"additional","affiliation":[{"name":"Radiology, Mayo Clinic Florida, Jacksonville, FL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vishal","family":"Patel","sequence":"additional","affiliation":[{"name":"Radiology, Mayo Clinic Florida, Jacksonville, FL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amit","family":"Desai","sequence":"additional","affiliation":[{"name":"Radiology, Mayo Clinic Florida, Jacksonville, FL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vivek","family":"Gupta","sequence":"additional","affiliation":[{"name":"Radiology, Mayo Clinic Florida, Jacksonville, FL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amit","family":"Agarwal","sequence":"additional","affiliation":[{"name":"Radiology, Mayo Clinic Florida, Jacksonville, FL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2023,2,12]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.1991.01870180113022"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.4103\/0028-3886.344679"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.2500\/ajra.2014.28.3978"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1080\/02688697.2016.1265088"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1080\/02688690802446966"},{"issue":"8","key":"e_1_3_3_7_2","first-page":"e3182","article-title":"Nasoethmoid Schwannoma with intracranial extension: a case report and comprehensive review of the literature","volume":"10","author":"Eichberg DG","year":"2018","unstructured":"Eichberg DG, Menaker SA, Buttrick SS, Gultekin SH, Komotar RJ. 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