{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T15:37:40Z","timestamp":1787499460368,"version":"build-2736575974"},"reference-count":10,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2018,2,2]]},"abstract":"<jats:p>Localised nasopharyngeal amyloidosis is rare. Findings on physical examination and invasive pattern on CT scan can be misleading as it can resemble nasopharyngeal carcinoma. A 64-year-old man presented with left aural fullness for 6 months. The physical examination showed straw-coloured fluid in the left middle ear and irregular reddish mass at the left side of the nasopharynx. The CT scan showed a lobulated heterogeneous mass at the left side of the nasopharynx involving the left Eustachian tube opening. Pathology report was amyloidosis, thus, surgery was done. After a year, there were new foci of amyloidosis at the right side of the nasopharynx, and a repeat surgery was performed. Two years later, the systemic amyloidosis with underlying IgG4-related disease was suspected due to multiple organ involvement. Surgery is the treatment for localised amyloidosis with compressive symptoms. Close follow-up is important after surgical excision due to its recurrence and progression to systemic amyloidosis.<\/jats:p>","DOI":"10.1136\/bcr-2017-222067","type":"journal-article","created":{"date-parts":[[2018,2,14]],"date-time":"2018-02-14T08:40:21Z","timestamp":1518597621000},"page":"bcr-2017-222067","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Localised nasopharyngeal amyloidosis: the importance of postoperative follow-up"],"prefix":"10.1136","volume":"2018","author":[{"given":"Sanathorn","family":"Chowsilpa","sequence":"first","affiliation":[{"name":"Department of Otolaryngology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saisawat","family":"Chaiyasate","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Komson","family":"Wannasai","sequence":"additional","affiliation":[{"name":"Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teerada","family":"Daroontum","sequence":"additional","affiliation":[{"name":"Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2018,2,14]]},"reference":[{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.1","doi-asserted-by":"publisher","DOI":"10.3109\/13506129.2014.964858"},{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.2","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1016\/j.anorl.2011.10.010","article-title":"Localized nasopharyngeal amyloidosis","volume":"129","author":"Durbec","year":"2012","journal-title":"Eur Ann Otorhinolaryngol Head Neck Dis"},{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.3","doi-asserted-by":"publisher","DOI":"10.1053\/ajot.2002.124195"},{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.4","doi-asserted-by":"publisher","DOI":"10.1093\/jscr\/rjs048"},{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.5","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1007\/s12105-016-0681-1","article-title":"Sinonasal globular amyloidosis simulating malignancy: a rare presentation","volume":"10","author":"Kumar","year":"2016","journal-title":"Head Neck Pathol"},{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.6","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1016\/j.anl.2011.01.022","article-title":"Primary localized amyloidosis of the nose","volume":"39","author":"Nakayama","year":"2012","journal-title":"Auris Nasus Larynx"},{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.7","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjoto.2006.08.009"},{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.8","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200312000-00007"},{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.9","doi-asserted-by":"crossref","first-page":"369","DOI":"10.2147\/CLEP.S39981","article-title":"Systemic AA amyloidosis: epidemiology, diagnosis, and management","volume":"6","author":"Real de As\u00faa","year":"2014","journal-title":"Clin Epidemiol"},{"key":"2025082703451585000_2018.feb13_1.bcr-2017-222067.10","doi-asserted-by":"crossref","first-page":"1476","DOI":"10.5858\/arpa.2017-0257-RA","article-title":"IgG4-Related Disease: A Reminder for Practicing Pathologists","volume":"141","author":"Weindorf","year":"2017","journal-title":"Arch Pathol Lab Med"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2017-222067","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T10:45:22Z","timestamp":1756291522000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2017-222067"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,2,14]]},"references-count":10,"alternative-id":["10.1136\/bcr-2017-222067"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2017-222067","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,2,14]]}}}