title: Pleural dissemination of a mixed ground-glass opacity nodule treated as a nontuberculous mycobacterial infection for 6 years without growing remarkably.
abstract: Pulmonary ground-glass opacity (GGO) nodules, which do not grow remarkably, are often observed without treatment. Lung tumors coexisting with inflammation and infection are difficult to diagnose. In this paper, we describe a very rare case of a pulmonary mixed GGO nodule with pleural dissemination. In 67-year-old female, chest computed tomography (CT) showed a mixed GGO nodule that had not grown remarkably in the right lung. For 6 years, the mixed GGO had been treated as nontuberculous mycobacterial infection. She was referred to our department for further investigation of the mixed GGO. We suspected lung cancer and performed lung segmentectomy. The tissue showed pleural dissemination. Coexisting nontuberculous mycobacteria (NTM) delayed the clinical diagnosis. Peripheral lung nodules should be resected or diagnosed as soon as possible, despite manifesting as a slow growth.
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Shuichi
authors.initials: S
authors.lastname: Shinohara
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Kouji
authors.initials: K
authors.lastname: Kuroda
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Hidehiko
authors.initials: H
authors.lastname: Shimokawa
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Taiji
authors.initials: T
authors.lastname: Kuwata
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Masaru
authors.initials: M
authors.lastname: Takenaka
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Chikaishi
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Souichi
authors.initials: S
authors.lastname: Oka
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Ayako
authors.initials: A
authors.lastname: Hirai
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Naoko
authors.initials: N
authors.lastname: Imanishi
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Uramoto
authors.affiliation: 1 Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan ; 2 Department of Thoracic surgery, Chubu Rosai Hospital, Nagoya, Aichi, Japan.
authors.forename: Fumihiro
authors.initials: F
authors.lastname: Tanaka
keywords: Consolidation/maximum tumor diameter ratio; dissemination; ground-glass opacity (GGO); nontuberculous mycobacteria (NTM)