{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,13]],"date-time":"2025-05-13T21:52:56Z","timestamp":1747173176381,"version":"3.40.5"},"reference-count":34,"publisher":"Cambridge University Press (CUP)","issue":"10","license":[{"start":{"date-parts":[[2022,5,6]],"date-time":"2022-05-06T00:00:00Z","timestamp":1651795200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Laryngol. Otol."],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S0022215122000548_sec_a1\"><jats:title>Objective<\/jats:title><jats:p>To determine the association between frontal sinus pneumatisation and concomitant anatomical variations in paranasal sinuses as seen on computed tomography.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215122000548_sec_a2\" sec-type=\"methods\"><jats:title>Methods<\/jats:title><jats:p>A total of 403 patients who underwent paranasal sinus computed tomography were allocated to three groups according to the degree of frontal sinus pneumatisation (type 1 \u2013 hypoplasia; type 2 \u2013 medium size; and type 3 \u2013 hyperplasia). In this unique model, the prevalence of ipsilateral variations on paranasal sinuses on each side of the head were analysed separately within each pneumatisation group.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215122000548_sec_a3\" sec-type=\"results\"><jats:title>Results<\/jats:title><jats:p>The type 3 frontal sinus pneumatisation group showed a greater association with ipsilateral variations of the sphenoid bone. Variations included pneumatisation of the anterior clinoid process, lateral sphenoid recess, pterygoid process and greater wing, and exposure of Vidian canal. This group also showed significant associations with male gender, and the presence of frontal and Onodi cells.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215122000548_sec_a4\" sec-type=\"conclusions\"><jats:title>Conclusion<\/jats:title><jats:p>Interpretation of the paranasal sinus variations is imperative for pre-operative evaluation in functional endoscopic sinus surgery, particularly in patients with frontal sinus hyperplasia. Attention to variation on the ipsilateral side is informative.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0022215122000548","type":"journal-article","created":{"date-parts":[[2022,5,6]],"date-time":"2022-05-06T13:08:44Z","timestamp":1651842524000},"page":"1097-1101","source":"Crossref","is-referenced-by-count":1,"title":["Frontal sinus pneumatisation: an isolated finding or a sign of concomitant anatomical variation?"],"prefix":"10.1017","volume":"137","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2086-4469","authenticated-orcid":false,"given":"K 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