title: [A case of pulmonary Mycobacterium intracellulare infectious disease with a solitary pulmonary nodule in the peripheral lung field].
abstract: A 63-year-old woman was admitted to our hospital because of a solitary nodule (20 x 20 mm) in the right S3 which was first detected during a health examination. Because radiological findings for the nodule, such as pleural indentation and spicula on chest CT led us to suspect a pulmonary adenocarcinoma, we could not completely rule out lung cancer and performed a bronchoscopic examination on the third day after admission. However, no definite diagnosis could be made. Therefore, video-assisted thoracic surgery (VATS) was performed, and a caseating epitheloid granuloma with acid-fast bacilli was found. Initially, we administered antituberculous drugs for pulmonary tuberculoma, but then changed to combined chemotherapy using RFP, EB, CAM and SM after identification of Mycobacterium intracellulare by a culture test of resected tissue. We report a rare case with a solitary nodule caused by pulmonary Mycobacterium intracellulare infectious disease which is indicative of lung cancer.
authors.affiliation: Division of Respiratory Diseases, Department of Medicine, Kawasaki Medical School.
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Kobashi
authors.forename: Kouichiro
authors.initials: K
authors.lastname: Yoshida
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Miyashita
authors.forename: Yoshihito
authors.initials: Y
authors.lastname: Niki
authors.forename: Toshiharu
authors.initials: T
authors.lastname: Matsushima
authors.forename: Masao
authors.initials: M
authors.lastname: Nakata
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008168:Lung / Q000473:pathology; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008875:Middle Aged; D015269:Mycobacterium avium Complex / Q000302:isolation & purification*; D015270:Mycobacterium avium-intracellulare Infection / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic; D003074:Solitary Pulmonary Nodule / Q000000981:diagnostic imaging; D020775:Thoracic Surgery, Video-Assisted; D014057:Tomography, X-Ray Computed