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CT of the chest confirmed an anterior mediastinal mass measuring 13.5\u00d76.6\u00d710.1\u2005cm, exerting a mass effect on the right atrium with mediastinal and right hilar adenopathy. CT-guided biopsy of the mediastinal mass revealed thymic carcinoma (squamous cell subtype). The metastatic workup was negative. The mass was deemed surgically unresectable due to its proximity to the heart. Chemotherapy was initiated with carboplatin\/paclitaxel every 3\u2005weeks with plans for intensity modulated radiotherapy after one to two cycles of chemotherapy. The patient recently had a repeat CT scan of the chest showing regression of the tumour.<\/jats:p>","DOI":"10.1136\/bcr-2016-216710","type":"journal-article","created":{"date-parts":[[2016,7,14]],"date-time":"2016-07-14T10:51:41Z","timestamp":1468493501000},"page":"bcr2016216710","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Rare cause of atrial fibrillation: a thymic mass"],"prefix":"10.1136","volume":"2016","author":[{"given":"Swati","family":"Vishwanathan","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, Allegheny Health Network, Pittsburg, Pennsylvania, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pritam","family":"Tayshetye","sequence":"additional","affiliation":[{"name":"Department of Hematology\/Oncology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Farshaad","family":"Bilimoria","sequence":"additional","affiliation":[{"name":"Department of Pathology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gene","family":"Finley","sequence":"additional","affiliation":[{"name":"Department of Hematology\/Oncology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2016,7,14]]},"reference":[{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijrobp.2003.11.021"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2559.2002.01328.x"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.3","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejrad.2006.05.003"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.4","doi-asserted-by":"crossref","first-page":"562","DOI":"10.6004\/jnccn.2013.0072","article-title":"Thymomas and thymic carcinomas: clinical practice Guidelines in Oncology","volume":"11","author":"Ettinger","year":"2013","journal-title":"J Natl Compr Canc Netw"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.5","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2013.11.026"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.6","doi-asserted-by":"publisher","DOI":"10.1510\/icvts.2010.253039"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.7","doi-asserted-by":"publisher","DOI":"10.1002\/1097-0142(19910215)67:4<1025::AID-CNCR2820670427>3.0.CO;2-F"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.8","doi-asserted-by":"publisher","DOI":"10.1097\/JTO.0b013e3181f20c05"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.9","doi-asserted-by":"publisher","DOI":"10.1016\/S1010-7940(01)00666-2"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.10","doi-asserted-by":"publisher","DOI":"10.1002\/cncr.10588"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.11","doi-asserted-by":"publisher","DOI":"10.1097\/00000421-200206000-00012"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.12","doi-asserted-by":"publisher","DOI":"10.1200\/JCO.2010.32.9607"},{"key":"2025082623415997000_2016.jul14_1.bcr2016216710.13","unstructured":"https:\/\/clinicaltrials.gov\/ct2\/show\/NCT01306045"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2016-216710","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T06:42:09Z","timestamp":1756276929000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2016-216710"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,7,14]]},"references-count":13,"alternative-id":["10.1136\/bcr-2016-216710"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2016-216710","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,7,14]]}}}