Small Airway Disease after Mycoplasma Pneumonia in Children: HRCT Findings and Correlation with Radiographic Findings.
10.3348/jkrs.2003.48.4.361
- Author:
Jung Eun CHEON
1
;
Woo Sun KIM
;
In One KIM
;
Young Yull KOH
;
Hoan Jong LEE
;
Kyung Mo YEON
Author Information
1. Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, SNUMRC, Clinical Research Institute, Seoul National University Hospital. kimws@radcom.snu.ac.kr
- Publication Type:Original Article
- Keywords:
Bronchiolitis obliterans;
Children, respiratory system;
Computed tomography (CT), high-resolution;
Lung, CT;
Mycoplasma pneumonia
- MeSH:
Bronchiectasis;
Bronchiolitis Obliterans;
Child*;
Diagnosis;
Follow-Up Studies;
Humans;
Lung;
Lung, Hyperlucent;
Mycoplasma*;
Pneumonia, Mycoplasma*;
Radiography;
Radiography, Thoracic;
Retrospective Studies;
Thorax
- From:Journal of the Korean Radiological Society
2003;48(4):361-367
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: To assess the high-resolution CT (HRCT) findings of small airway abnormalities after mycoplasma pneumonia and correlate them with the findings of chest radiography performed during the acute and follow-up phases of the condition. MATERIALS AND METHODS: We retrospectively evaluated HRCT and chest radiographic findings of 18 patients with clinical diagnosis of small airway disease after mycoplasma pneumonia (M:F=8:10, mean age: 8.3 years, mean time interval after the initial infection; 26 months). We evaluated the lung parenchymal and bronchial abnormalities on HRCT (n=18). In addition, presence of air-trapping was assessed on expiratory scans (n=13). The findings of HRCT were correlated with those of chest radiography performed during the acute phase of initial infection (n=15) and at the time of CT examination (n=18), respectively. RESULTS: HRCT revealed lung parenchymal abnormalities in 13 patients (72%). A mosaic pattern of lung attenuation was noted in ten patients (10/18, 56%), and air-trapping on expiratory scans was observed in nine (9/13, 69%). In nine of 14 (64%) with negative findings at follow-up chest radiography, one or both of the above parenchymal abnormalities was observed at HRCT. In four patients (27%), parenchymal abnormalities were seen at HRCT in areas considered normal at acute-phase chest radiography. Bronchiectasis or ateclectasis was observed in eight (44%) and four (22%) patients, respectively, at HRCT. The CT features of Swyer-James syndrome such as a unilateral hyperlucent lung with reduced lung volume and attenuated vessels were noted in two patients (11%). CONCLUSION: HRCT can clearly demonstrate lung parenchymal and bronchial abnormalities of small airway disease after mycoplasma pneumonia in children.
