{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T16:04:55Z","timestamp":1773849895524,"version":"3.50.1"},"reference-count":5,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2019,7,1]],"date-time":"2019-07-01T00:00:00Z","timestamp":1561939200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Respirology Case Reports"],"published-print":{"date-parts":[[2019,10]]},"abstract":"<jats:p>Nocardiosis is an uncommon infection caused by <jats:italic>Nocardia<\/jats:italic> species, but it can often occur in immunocompromised patients. As computed tomography (CT) findings of pulmonary nocardiosis, consolidation, masses, and nodules are often found, but lymph node enlargement is infrequent. <jats:italic>Nocardia exalbida<\/jats:italic> was first isolated in 2006, and there are still few reports on this microorganism. We report a case of pulmonary nocardiosis caused by <jats:italic>N. exalbida<\/jats:italic> presenting as a mass and lymph node enlargement that mimicked lung cancer. A 76\u2010year\u2010old man was referred and admitted to our hospital because of persistent cough, sputum production, and chest discomfort. Chest CT showed a mass in the superior segment of the left upper lobe and mediastinal lymph node enlargement. After we performed bronchoscopies, <jats:italic>Nocardia<\/jats:italic> species was isolated in a cultured specimen and identified as <jats:italic>N. exalbida<\/jats:italic>. This case required differentiation from lung cancer and was difficult to diagnose.<\/jats:p>","DOI":"10.1002\/rcr2.458","type":"journal-article","created":{"date-parts":[[2019,7,2]],"date-time":"2019-07-02T00:09:14Z","timestamp":1562026154000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Pulmonary nocardiosis caused by <i>Nocardia exalbida<\/i> mimicking lung cancer"],"prefix":"10.1002","volume":"7","author":[{"given":"Chika","family":"Miyaoka","sequence":"first","affiliation":[{"name":"Department of Respiratory Medicine, Fukujuji Hospital Japan Anti\u2010Tuberculosis Association  Kiyose Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7140-6273","authenticated-orcid":false,"given":"Keitaro","family":"Nakamoto","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine, Fukujuji Hospital Japan Anti\u2010Tuberculosis Association  Kiyose Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tatsuya","family":"Shirai","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine, Fukujuji Hospital Japan Anti\u2010Tuberculosis Association  Kiyose Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maki","family":"Miyamoto","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine, Fukujuji Hospital Japan Anti\u2010Tuberculosis Association  Kiyose Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuka","family":"Sasaki","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine, Fukujuji Hospital Japan Anti\u2010Tuberculosis Association  Kiyose Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ken","family":"Ohta","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine, Fukujuji Hospital Japan Anti\u2010Tuberculosis Association  Kiyose Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,7]]},"reference":[{"key":"e_1_2_4_2_1","doi-asserted-by":"publisher","DOI":"10.1128\/CMR.7.2.213"},{"key":"e_1_2_4_3_1","first-page":"577","article-title":"High\u2010resolution CT findings of patients with pulmonary nocardiosis","volume":"4","author":"Tsujimoto N","year":"2012","journal-title":"J. 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