title: Nontuberculous Mycobacterial Lung Disease Caused by Mycobacterium chelonae: A Case Report.
abstract: Mycobacterium chelonae lung disease is very rare. We report a case of lung disease caused by M. chelonae in a previously healthy woman. A 69-year-old woman was referred to our hospital because of hemoptysis. A computed tomography (CT) scan of the chest revealed bronchiolitis associated with bronchiectasis in the lingular division of the left upper lobe. Nontuberculous mycobacteria were isolated three times from sputum specimens. All isolates were identified as M. chelonae by various molecular methods that characterized rpoB and hsp65 gene sequences. Although some new lesions including bronchiolitis in the superior segment of the left lower lobe developed on the chest CT scan 35 months after diagnosis, she has been followed up without antibiotic therapy because of her mild symptoms. To the best of our knowledge, this is the first case of M. chelonae lung disease in Korea in which the etiologic organisms were confirmed using molecular techniques.
authors.affiliation: Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Yousang
authors.initials: Y
authors.lastname: Ko
authors.forename: Wooyoul
authors.initials: W
authors.lastname: Kim
authors.forename: Beom Su
authors.initials: BS
authors.lastname: Shin
authors.forename: Hongseok
authors.initials: H
authors.lastname: Yoo
authors.forename: Jung Seop
authors.initials: JS
authors.lastname: Eom
authors.forename: Ji Hyun
authors.initials: JH
authors.lastname: Lee
authors.forename: Byung Woo
authors.initials: BW
authors.lastname: Jhun
authors.forename: Su-Young
authors.initials: SY
authors.lastname: Kim
authors.forename: Go-Eun
authors.initials: GE
authors.lastname: Choi
authors.forename: Sung Jae
authors.initials: SJ
authors.lastname: Shin
authors.forename: Won-Jung
authors.initials: WJ
authors.lastname: Koh
keywords: Bronchiectasis; Mycobacterium chelonae; Nontuberculous Mycobacteria