title: [2 cases of lung disease caused by Mycobacterium avium complex occurred in middle-aged women without underlying disorders, which we observed for more than 30 years].
abstract: We reported 2 cases of Mycobacterium avium complex lung disease occurred in middle-aged women without underlying disorders, which we could observe for more than 30 years. One case was a 42-year-old woman started with bloody sputum, and the other was a 43-year-old woman with cough and sputum. In both cases, chest X ray films were normal on their first visit. More than 15 years after their first visit, Mycobacterium avium complex was isolated from their sputum or bronchial washing. During the observation, a cluster of small nodules in the periphery of the lung and bronchiectasis appeared and deteriorated, and excretion of the bacilli increased gradually. Their past history and family history were normal. Since lung disease caused by Mycobacterium avium complex progresses very slowly, long-time observation would be necessary to consider its pathogenesis.
authors.affiliation: Department of infection and Inflammation, Kyoto University, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Takakura
authors.forename: E
authors.initials: E
authors.lastname: Tanaka
authors.forename: W J
authors.initials: WJ
authors.lastname: Lee
authors.forename: H
authors.initials: H
authors.lastname: Matsumoto
authors.forename: K
authors.initials: K
authors.lastname: Tsuyuguchi
authors.forename: A
authors.initials: A
authors.lastname: Niimi
authors.forename: K
authors.initials: K
authors.lastname: Suzuki
authors.forename: T
authors.initials: T
authors.lastname: Murayama
authors.forename: R
authors.initials: R
authors.lastname: Amitani
authors.forename: F
authors.initials: F
authors.lastname: Kuze
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008875:Middle Aged; D015270:Mycobacterium avium-intracellulare Infection / Q000000981:diagnostic imaging*; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging*