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01-06-2012 | Original Article

Mycobacterium kansasii pulmonary infection: CT findings in 29 cases

Authors: Masashi Takahashi, Hiroaki Tsukamoto, Tetsuji Kawamura, Yoshirou Mochizuki, Masatsugu Ouchi, Shuhei Inoue, Norihisa Nitta, Kiyoshi Murata

Published in: Japanese Journal of Radiology | Issue 5/2012

Abstract

Purpose

Our aim was to assess computed tomography (CT) features of Mycobacterium kansasii pulmonary infection (M. kansasii infection).

Materials and methods

A total of 29 cases confirmed to have M. kansasii infections were analyzed. The main locations of pulmonary changes, incidence, and various imaging features of the cavity (location, maximum diameter, wall thickness, satellite nodules, intracavitary fluid), and other imaging findings such as nodules, consolidation, and bronchiectasis, were visually assessed on CT images.

Results

Locations of the main abnormalities were as follows: right S2 41%; right S1 31%; left S1+S2 2: 21%. A total of 49 cavities were observed in 24 (83%) cases. The mean maximum diameter, wall thickness, and ratio of wall thickness to the maximum diameter were 33.0 mm, 4.7 mm, and 0.19, respectively. Shapes of the cavities were round in nine (18.4%), oval in 17 (34.7%), and tubular/meandering in 23 (47%). Satellite nodules were found in only 30.6% of patients (n = 15). Small nodules were found in 26 (89.7%) patients, and most of them showed a centrilobular distribution.

Conclusion

The characteristic CT findings suggestive of M. kansasii infection include cavities located in the right posterior or apical segment with a tubular/meandering shape and a thin wall.

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Title: Mycobacterium kansasii pulmonary infection: CT findings in 29 cases
Authors: Masashi Takahashi
Hiroaki Tsukamoto
Tetsuji Kawamura
Yoshirou Mochizuki
Masatsugu Ouchi
Shuhei Inoue
Norihisa Nitta
Kiyoshi Murata
Publication date: 01-06-2012
Publisher: Springer Japan
Published in: Japanese Journal of Radiology / Issue 5/2012
Print ISSN: 1867-1071
Electronic ISSN: 1867-108X
DOI: https://doi.org/10.1007/s11604-012-0061-z

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Mycobacterium kansasii pulmonary infection: CT findings in 29 cases

Abstract

Purpose

Materials and methods

Results

Conclusion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Purpose

Materials and methods

Results

Conclusion

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