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ORIGINAL ARTICLES • Radiol Bras 49 (4) • Jul-Aug 2016 • https://doi.org/10.1590/0100-3984.2015.0078 linkcopy

Open-access Pulmonary infection caused by Mycobacterium kansasii: findings on computed tomography of the chest*

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    Abstract

    Objective:  To describe the main tomography findings in patients diagnosed with pulmonary infection caused by Mycobacterium kansasii.

    Materials and Methods:  Retrospective study of computed tomography scans of 19 patients with pulmonary infection by M. kansasii.

    Results:  Of the 19 patients evaluated, 10 (52.6%) were male and 9 (47.4%) were female. The mean age of the patients was 58 years (range, 33-76 years). Computed tomography findings were as follows: architectural distortion, in 17 patients (89.5%); reticular opacities and bronchiectasis, in 16 (84.2%); cavities, in 14 (73.7%); centrilobular nodules, in 13 (68.4%); small consolidations, in 10 (52.6%); atelectasis and large consolidations, in 9 (47.4%); subpleural blebs and emphysema, in 6 (31.6%); and adenopathy, in 1 (5.3%).

    Conclusion:  There was a predominance of cavities, as well as of involvement of the small and large airways. The airway disease was characterized by bronchiectasis and bronchiolitis presenting as centrilobular nodules.

    Keywords: Mycobacterium infections, nontuberculous; Tomography, X-ray computed; Lung/pathology

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