{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T00:15:27Z","timestamp":1777421727062,"version":"3.51.4"},"reference-count":22,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2007,9,1]],"date-time":"2007-09-01T00:00:00Z","timestamp":1188604800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Ann Otol Rhinol Laryngol"],"published-print":{"date-parts":[[2007,9]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives:<\/jats:title>\n                    <jats:p>We sought to determine the value of preoperative staging by magnetic resonance imaging (MRI) assessment in the surgical management of sinonasal inverted papillomas (IPs).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Preoperative MRI staging was used to assess 22 patients with IPs. In addition to the Krouse staging system, T3 cases were categorized as subgroup T3-B if tumors extended into the frontal sinus or the supraorbital recess; otherwise, they were categorized as T3-A. Standard endoscopic sinus surgery (ESS) was the first choice for T1 and T2 cases. Endoscopic approaches, including ESS combined with endoscope-assisted transantral approach and endoscopic medial maxillectomy, were considered in T3-A cases, and external approaches were considered in T3-B cases. Patients were followed for a minimum of 1 year after surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Preoperative MRI staging and postoperative staging were coincident in 21 of the 22 patients (95%). All 8 T2 cases were treated by an endoscopic approach. Of 10 T3-A cases, 9 (90%) were treated by an endoscopic approach and 1 (residual case) was treated by an external approach. All 3 of the T3-B cases underwent an external approach. One T4 case with malignant transformation underwent an external approach followed by radiotherapy. After a median follow-up period of 22 months, none of the 22 patients had had a recurrence. No major complications were observed after endoscopic approaches, but epiphora or hemorrhage requiring transfusion occurred in 3 of the 5 patients (60%) who underwent external approaches.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Preoperative staging of IP by MRI is useful for selecting cases that can be managed by endoscopic approaches, resulting in lower rates of tumor recurrence and morbidity.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/000348940711600909","type":"journal-article","created":{"date-parts":[[2014,10,3]],"date-time":"2014-10-03T14:40:52Z","timestamp":1412347252000},"page":"674-680","source":"Crossref","is-referenced-by-count":35,"title":["Preoperative Staging and Surgical Approaches for Sinonasal Inverted Papilloma"],"prefix":"10.1177","volume":"116","author":[{"given":"Keita","family":"Oikawa","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasushi","family":"Furuta","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuji","family":"Nakamaru","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nobuhiko","family":"Oridate","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Satoshi","family":"Fukuda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2007,9,1]]},"reference":[{"key":"bibr1-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200309000-00026"},{"key":"bibr2-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1288\/00005537-199208000-00012"},{"key":"bibr3-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1053\/ajot.2001.22563"},{"key":"bibr4-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1016\/j.otohns.2005.11.038"},{"key":"bibr5-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1288\/00005537-199508000-00015"},{"key":"bibr6-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1097\/00020840-199902000-00008"},{"key":"bibr7-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200006000-00015"},{"key":"bibr8-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200309000-00025"},{"key":"bibr9-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1016\/j.otohns.2004.05.011"},{"key":"bibr10-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1002\/hed.10350"},{"key":"bibr11-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200402000-00003"},{"key":"bibr12-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1016\/j.anl.2005.03.015"},{"key":"bibr13-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1016\/j.otohns.2005.01.016"},{"key":"bibr14-000348940711600909","first-page":"205","volume":"44","author":"Minovi A","year":"2006","journal-title":"Rhinology"},{"key":"bibr15-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200311000-00024"},{"key":"bibr16-000348940711600909","doi-asserted-by":"publisher","DOI":"10.1177\/000348940711600414"},{"key":"bibr17-000348940711600909","doi-asserted-by":"publisher","DOI":"10.2500\/105065800781602902"},{"key":"bibr18-000348940711600909","first-page":"193","volume-title":"Rhinology and sinusology. 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