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The differential diagnosis of a nasopharyngeal cyst is always challenging since developmental cysts such as Rathke\u2019s pouch cysts, Torwaldt\u2019s and branchial cleft cysts may be encountered at the nasopharynx. The current article also intends to present the diagnostic and therapeutic approach to a nasopharyngeal cyst, emphasising anatomical and embryological considerations that address its differential diagnosis.<\/jats:p>","DOI":"10.1136\/bcr-2023-256945","type":"journal-article","created":{"date-parts":[[2023,11,22]],"date-time":"2023-11-22T12:31:12Z","timestamp":1700656272000},"page":"e256945","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Nasopharyngeal cyst in an adolescent boy: differential diagnosis \u2013 embryological and anatomical considerations"],"prefix":"10.1136","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3178-2618","authenticated-orcid":false,"given":"Anastasios","family":"Goulioumis","sequence":"first","affiliation":[{"name":"Otorhinolaryngology, Karamandanio Children's Hospital, Patras, Greece"},{"name":"Anatomy, University of Patras School of Health Sciences, Patras, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sotirios","family":"Fouzas","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, University of Patras, Patra, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elisavet-Maria","family":"Xenofontos","sequence":"additional","affiliation":[{"name":"Otorhinolaryngology, Karamandanio Children's Hospital, Patras, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kostis","family":"Gyftopoulos","sequence":"additional","affiliation":[{"name":"Anatomy, University of Patras School of Health Sciences, Patras, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2023,11,22]]},"reference":[{"key":"2025082712502198000_16.11.e256945.1","first-page":"KD03","article-title":"Preetam P, et al.recent trends in the management of Thornwaldts Cyst: A case report","volume":"8","author":"Jyotirmay","year":"2014","journal-title":"J Clin Diagn Res"},{"key":"2025082712502198000_16.11.e256945.2","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1111\/j.1365-2273.1985.tb01160.x","article-title":"Tornwaldt\u2019s Bursa","volume":"10","author":"Miller","year":"1985","journal-title":"Clin Otolaryngol Allied Sci"},{"key":"2025082712502198000_16.11.e256945.3","doi-asserted-by":"crossref","first-page":"e560","DOI":"10.1097\/SCS.0000000000004559","article-title":"Thornwaldt Cyst","volume":"29","author":"Cetinkaya","year":"2018","journal-title":"J Craniofac Surg"},{"key":"2025082712502198000_16.11.e256945.4","doi-asserted-by":"crossref","first-page":"e208","DOI":"10.1097\/SCS.0000000000006120","article-title":"Is transnasal endoscopic Marsupialization sufficient in Thornwaldt cysts","volume":"31","author":"Turan","year":"2020","journal-title":"J CraniofacSurg"},{"issue":"5_suppl","key":"2025082712502198000_16.11.e256945.5","doi-asserted-by":"crossref","first-page":"528S","DOI":"10.1177\/0145561319890159","article-title":"Huge Tornwaldt Cyst with Otitis media with","volume":"100","author":"Lee","year":"2021","journal-title":"Ear Nose Throat J"},{"key":"2025082712502198000_16.11.e256945.6","doi-asserted-by":"publisher","DOI":"10.1016\/j.anl.2014.08.016"},{"key":"2025082712502198000_16.11.e256945.7","doi-asserted-by":"crossref","first-page":"36","DOI":"10.3109\/00016489409124336","article-title":"Tornwaldt's disease","volume":"517","author":"Miyahara","year":"1994","journal-title":"Acta Otolaryngol Suppl"},{"key":"2025082712502198000_16.11.e256945.8","first-page":"5323","article-title":"Wang S.Coblation assisted transnasal endoscopic resection of Nasopharyngeal Cyst: 10 years experience and outcomes","volume":"8","author":"Wang","year":"2015","journal-title":"Int J Clin Exp Med"},{"key":"2025082712502198000_16.11.e256945.9","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1007\/s12070-011-0185-y","article-title":"Tornwaldt Cyst: a cause of neck pain and stiffness.Indian","volume":"63","author":"Baisakhiya","year":"2011","journal-title":"Indian J Otolaryngol Head Neck Surg"},{"key":"2025082712502198000_16.11.e256945.10","doi-asserted-by":"crossref","unstructured":"Smoker W . 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