{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T17:56:59Z","timestamp":1791309419061,"version":"4.3.1"},"reference-count":20,"publisher":"Wiley","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Case Reports in Pulmonology"],"published-print":{"date-parts":[[2014]]},"abstract":"<jats:p>A 66-year-old male presented with chest pain, malaise, generalized weakness, and weight loss. He had been receiving etanercept injection for rheumatoid arthritis. Chest X-ray revealed a right upper lobe mass. Chest computed tomography (CT) showed a right apical mass, highly suggestive of a Pancoast tumor. The thoracic fluorine-18 fluoro-deoxy-glucose (<jats:sup>18<\/jats:sup>F-FDG) positron emission tomography (PET) scan demonstrated significantly high metabolic pulmonary lesions with the standardized uptake value (SUV) of 12.5, consistent with lung cancer. The patient underwent bronchoscopy and bronchoalveolar lavage (BAL). BAL cytology was negative for malignant cells. BAL acid fast bacilli (AFB) smears were positive, and<jats:italic>Mycobacterium kansasii<\/jats:italic>was eventually isolated. He received a 12-month course of rifampin, isoniazid, and ethambutol. Interval resolution of pulmonary lesions was noted on follow-up serial CT chest studies. There has been increasing incidence of nontuberculous mycobacterial infections reported in patients treated with the antitumor necrosis factor-alpha (anti-TNF-alpha) agents. Infectious foci have an increased glucose metabolism which potentially causes a high FDG uptake on the<jats:sup>18<\/jats:sup>F-FDG PET scan, leading to undue anxiety and cost to the patients. This is the first reported case of pulmonary<jats:italic>M. kansasii<\/jats:italic>infection with a positive thoracic<jats:sup>18<\/jats:sup>F-FDG PET study mimicking malignancy in a patient on etanercept.<\/jats:p>","DOI":"10.1155\/2014\/973573","type":"journal-article","created":{"date-parts":[[2014,10,20]],"date-time":"2014-10-20T17:09:51Z","timestamp":1413824991000},"page":"1-5","source":"Crossref","is-referenced-by-count":6,"title":["Pulmonary<i>Mycobacterium kansasii<\/i>Infection Mimicking Malignancy on the<sup>18<\/sup>F-FDG PET Scan in a Patient Receiving Etanercept: A Case Report and Literature Review"],"prefix":"10.1155","volume":"2014","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5708-954X","authenticated-orcid":true,"given":"Zaw","family":"Min","sequence":"first","affiliation":[{"name":"Core Faculty, Division of Infectious Diseases, Allegheny General Hospital, Allegheny Health Network, 420 East North Avenue, East Wing, Suite 407, Pittsburgh, PA 15212, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohan","family":"Amlani","sequence":"additional","affiliation":[{"name":"Baltimore Washington Medical Center, 8021 Ritchie Highway, Pasadena, MD 21122, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1086\/429994"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1086\/587989"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.3201\/eid1510.090310"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.3348\/kjr.2006.7.1.57"},{"key":"5","first-page":"3191","volume-title":"Infections due to non-tuberculous Mycobacteria other than Mycobacterium avium-intracellulare","year":"2010"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.200604-571ST"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1093\/clinids\/22.6.1109"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1378\/chest.75.2.120"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1086\/424455"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1097\/MAJ.0b013e31820f8c70"},{"key":"11","series-title":"M24-A2","volume-title":"Susceptibility testing of mycobacteria, nocardiae, and other aerobic actinomycetes","volume":"31","year":"2011"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.1148\/radiographics.18.1.9460106"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1016\/S1470-2045(01)00555-1"},{"issue":"11","key":"14","first-page":"1771","volume":"35","year":"1994","journal-title":"The Journal of Nuclear Medicine"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1016\/S0001-2998(98)80038-X"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1111\/j.1447-0594.2010.00619.x"},{"issue":"8","key":"17","doi-asserted-by":"crossref","first-page":"726","DOI":"10.2169\/internalmedicine.42.726","volume":"42","year":"2003","journal-title":"Internal Medicine"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.2169\/internalmedicine.50.4958"},{"issue":"3","key":"19","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1179\/0001551214Z.00000000052","volume":"69","year":"2014","journal-title":"Acta Clinica Belgica"},{"key":"20","doi-asserted-by":"publisher","DOI":"10.1099\/jmm.0.006809-0"}],"container-title":["Case Reports in Pulmonology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/cripu\/2014\/973573.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/cripu\/2014\/973573.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/cripu\/2014\/973573.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,6,22]],"date-time":"2017-06-22T18:44:00Z","timestamp":1498157040000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.hindawi.com\/journals\/cripu\/2014\/973573\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014]]},"references-count":20,"alternative-id":["973573","973573"],"URL":"https:\/\/doi.org\/10.1155\/2014\/973573","relation":{},"ISSN":["2090-6846","2090-6854"],"issn-type":[{"value":"2090-6846","type":"print"},{"value":"2090-6854","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014]]}}}