Two Cases of Congenital Bronchial Atresia Detected at a Medical Checkup with Different Radiological Findings

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  • Kimura Ryo
    Department of Respiratory Medicine, JA Gifu-kouseiren Tono Kosei Hospital
  • Yokoyama Toshihiko
    Department of Respiratory Medicine, Japanese Red Cross Nagoya Daiichi Hospital
  • Sano Miku
    Department of Respiratory Medicine, Japanese Red Cross Nagoya Daiichi Hospital
  • Nishiyama Hirono
    Department of Respiratory Medicine, Japanese Red Cross Nagoya Daiichi Hospital
  • Tamiya Yutaro
    Department of Respiratory Medicine, Nagoya University Hospital
  • Shinozuka Rei
    Department of Respiratory Medicine, Japanese Red Cross Nagoya Daiichi Hospital
  • Fukutani Eriko
    Department of Respiratory Medicine, Japan Community Healthcare Organization Chukyo Hospital
  • Kodama Yuta
    Department of Respiratory Medicine, Nagoya University Hospital
  • Aoyama Daisuke
    Department of Respiratory Medicine, Japanese Red Cross Nagoya Daiichi Hospital
  • Nomura Fumio
    Department of Respiratory Medicine, Japanese Red Cross Nagoya Daiichi Hospital

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Other Title
  • 健診にて発見され，異なる画像所見を呈した先天性気管支閉鎖症の2例

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<p>Background. Congenital bronchial atresia (CBA) is likely caused by ischemia of the bronchial artery during embryonic development. Cases. During a routine medical checkup, chest X-ray showed abnormal findings in Case 1 (37-year-old woman) and Case 2 (65-year-old man). Neither patient had a history of lung infection or subjective symptoms. Computed tomography suggested bronchial atresia accompanied by localized emphysema in both cases. However, mucoid impaction was seen only in Case 2. Bronchoscopy revealed a fine recess resulting in membranous occlusion at the inlet of the left B6 in Case 1 and a complete absence of the right B6 in Case 2. No abnormalities in the mucosal epithelium covering the bronchial atresia were observed in either case. Both patients were finally diagnosed with CBA. Conclusion. We encountered two cases of CBA detected during a medical checkup with different radiological findings. In cases identified as having localized emphysema on imaging studies, bronchoscopy should be considered due to possibility of CBA, regardless of mucoid impaction.</p>

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