Mycobacterium kansasii pulmonary infection: CT findings in 29 cases
| Autor: | Tetsuji Kawamura, Masashi Takahashi, Masatsugu Ouchi, Yoshirou Mochizuki, Shuhei Inoue, Norihisa Nitta, Kiyoshi Murata, Hiroaki Tsukamoto |
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| Rok vydání: | 2011 |
| Předmět: |
Adult
Lung Diseases Male Mycobacterium Infections Nontuberculous Pulmonary infection Maximum diameter Satellite Nodule medicine Humans Radiology Nuclear Medicine and imaging Ct findings Lung Aged Mycobacterium kansasii Aged 80 and over Bronchiectasis biology business.industry Middle Aged medicine.disease biology.organism_classification Right posterior Female Tomography Nuclear medicine business Tomography X-Ray Computed |
| Zdroj: | Japanese journal of radiology. 30(5) |
| ISSN: | 1867-108X |
| Popis: | Our aim was to assess computed tomography (CT) features of Mycobacterium kansasii pulmonary infection (M. kansasii infection). 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. 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. 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. |
| Databáze: | OpenAIRE |
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