{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T22:05:29Z","timestamp":1767650729748,"version":"3.44.0"},"reference-count":26,"publisher":"BMJ","issue":"10","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2020,9,22]]},"published-print":{"date-parts":[[2020,10]]},"abstract":"<jats:p>Laryngeal oncocytic cystadenomas are rare benign tumours lined by oncocytic epithelium and arising from the salivary glands; they usually present as a supraglottic mass. Oncocytic changes are very uncommon in the larynx and occur mainly in ventricles and false vocal cords, where seromucinous glands predominate. The authors present the case of a 62-year-old woman who reported a 6-month history of hoarseness associated with a soft and non-compressible upper left side neck swelling. Transnasal fiberoptic laryngoscopy revealed a left submucosal supraglottic mass involving the false vocal fold and the vallecula, partially obstructing the airway. CT scan showed a homogeneous isodense cystic lesion centred at the left laryngeal ventricle, with extension through the thyrohyoid membrane. The patient was successfully managed by a lateral thyrotomy approach. Histopathological examination of the specimen revealed a papillary oncocytic cystadenoma and excluded malignancy. There was no evidence of recurrence after 9 months of follow-up.<\/jats:p>","DOI":"10.1136\/bcr-2020-236866","type":"journal-article","created":{"date-parts":[[2020,10,29]],"date-time":"2020-10-29T17:01:37Z","timestamp":1603990897000},"page":"e236866","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":4,"title":["Laryngeal oncocytic cystadenoma mimicking a combined laryngomucocele"],"prefix":"10.1136","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7762-3615","authenticated-orcid":false,"given":"Pedro","family":"Salvador","sequence":"first","affiliation":[{"name":"Department of Otorhinolaryngology, Hospital da Senhora da Oliveira Guimar\u00e3es, Guimaraes, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Francisco","family":"Moreira da Silva","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, Hospital da Senhora da Oliveira Guimar\u00e3es, Guimaraes, 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