{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,30]],"date-time":"2026-05-30T13:28:15Z","timestamp":1780147695325,"version":"3.54.0"},"reference-count":18,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"abstract":"<jats:p>We experienced an extremely rare case in which combined antibacterial therapy for a non-tuberculous mycobacteria (NTM) infection of the parotid gland achieved a favourable outcome in an elderly immunocompetent patient. Although a 79-year-old man, who presented with swelling and fistula formation in the left parotid gland region, initially received combined antituberculous therapy due to a positive result of acid-fast staining, the lesion did not respond to these agents. Thereafter, since the culture examination did not detect <jats:italic>Mycobacterium tuberculosis<\/jats:italic> or NTM, we excluded tuberculosis and considered the possibility of an NTM infection caused by a rare mycobacterial species. Therefore, we switched to the clarithromycin-based antibacterial treatment for eight consecutive months without a surgical intervention, resulting in the complete disappearance of the lesion and no evidence of recurrence detected for 4\u2005years. This conservative chemotherapy might be a feasible alternative to a surgical intervention for treatment against NTM infections of the parotid gland.<\/jats:p>","DOI":"10.1136\/bcr-2013-200990","type":"journal-article","created":{"date-parts":[[2013,10,16]],"date-time":"2013-10-16T06:27:54Z","timestamp":1381904874000},"page":"bcr2013200990","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":6,"title":["Non-tuberculous mycobacterial infection of the parotid gland in an immunocompetent elderly patient"],"prefix":"10.1136","volume":"2013","author":[{"given":"Toshiaki","family":"Yamanaka","sequence":"first","affiliation":[{"name":"Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, Nara, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hideyuki","family":"Okamoto","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, 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