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KMID : 1103720070560020155
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Journal of the Korean Society of Radiology
2007 Volume.56 No. 2 p.155 ~ p.160
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CT Findings of Swyer-James-MacLeod Syndrome in Adults: Are There Any Different Findings with Aging?
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Kang Mi-Jin
Kim Jung-Sook
Kim Ji-Young
Kim Sung-Hee
Jeong Myung-Ja
Kim Soo-Hyun
Kim Jae-Hyung
Bae Sang-Jin
Woo Jeong-Joo
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Abstract
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Purpose: We wanted to evaluate whether there is any different finding on CT with aging for the patients suffering with adult Swyer-James-MacLeod Syndrome (SJMS).
Materials and Methods: We included 11 patients (7 males and 4 females) who underwent chest CT scan among 18 patients who were suspected of suffering with SJMS on chest radiographs. The range of age was from 28 to 85 years (mean: 58.5). We evaluated the diameter of both the main pulmonary artery (MPA) with its ratio, and the diameter of the pulmonary trunk (PT) to evaluate the possibility of pulmonary arterial hypertension, and the presence or absence of bronchiectasis. We also evaluated the relationships between these findings and aging.
Results: SJMS affected the left lung in 10 of 11 patients. The mean diameter of the main pulmonary artery of the normal lung was 2.5 cm and it was 1.6 cm in the involved site. The mean ratio of the normal MPA diameter to the involved one was 1.6 and this did not correlate with age (p>0.1). The mean diameter of the pulmonary trunk was 2.8 cm and this increased with age (p<0.05). There was bronchiectasis in 6 of 11 patients, and the ratio of bronchiectasis did not correlate with age (p>0.5).
Conclusion: SJMS absolutely affected the left lung much more than the right lung. All the patients demonstrated about 1.6 times the compensatory hypertrophy of MPA of the normal lung compared with that of the affected lung on chest CT, which was irrespective of age. The presence or absence of bronchiectasis has no correlation with age.
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KEYWORD
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Lung CT, Lung air trapping, Pulmonary arteries, Bronchiolitis, Bronchiectasis
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