title: Multiple Cavitary Pulmonary Nodules Caused by Mycobacterium intracellulare.
abstract: Nontuberculous mycobacteria (NTM) have been increasingly recognized as an important cause of chronic pulmonary infections. The Mycobacterium avium complex (MAC), which is composed of two species, Mycobacterium avium and Mycobacterium intracelluare, is the most commonly encountered pathogen associated with NTM lung disease. MAC pulmonary infection typically presents in a fibrocavitary form or a nodular bronchiectatic form. However, there have been atypical presentations of MAC pulmonary infections, including solitary pulmonary nodules (SPN). There have been several previous reports of SPN due to MAC infection in the United States, Japan, and Korea. In 2009, Sekine and colleagues reported a case of MAC pulmonary infection presenting with multiple nodules. To date, however, there have been no cases of NTM lung infection with multiple cavitary pulmonary nodules, and neither a fibrotic change nor nodular bronchiectasis. The present case showed a multiple cavitating nodular lung infection due to MAC, which is very rare and different from the typical presentation of MAC pulmonary infections. We also showed that percutaneous transthoracic needle aspiration can be a useful diagnostic tool to evaluate a case of multiple cavitary nodules.
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Sang Hoon
authors.initials: SH
authors.lastname: Yoo
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Seo Ree
authors.initials: SR
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Joon Young
authors.initials: JY
authors.lastname: Choi
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Jae Woo
authors.initials: JW
authors.lastname: Choi
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Yu Mi
authors.initials: YM
authors.lastname: Ko
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Sun Hee
authors.initials: SH
authors.lastname: Jang
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Jun Kyu
authors.initials: JK
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Ye Gyu
authors.initials: YG
authors.lastname: Sung
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Yun Jung
authors.initials: YJ
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Su Yun
authors.initials: SY
authors.lastname: Oh
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Se Young
authors.initials: SY
authors.lastname: Bahk
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Ju Hyun
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Daejeon, Korea.
authors.forename: Myung Sook
authors.initials: MS
authors.lastname: Kim
keywords: Multiple Cavitary Pulmonary Nodule; Mycobacterium avium Complex; Percutaneous Transthoracic Needle Aspiration