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Persistent diffuse pulmonary interstitial emphysema mimicking pulmonary emphysema
  1. Y Demura,
  2. T Ishizaki,
  3. M Nakanishi,
  4. S Ameshima,
  5. H Itoh
  1. Department of Respiratory Medicine, Faculty of Medical Sciences, University of Fukui Hospital, Fukui, Japan
  1. Correspondence to:
    Dr Y Demura
    23-2 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan; demura{at}

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A 69-year-old male non-smoker with a history of atopic asthma of >30 years had recently been diagnosed with pulmonary emphysema (chronic obstructive pulmonary disease, COPD) because of exertional dyspnoea and chronic airflow limitation without bronchodilator responsiveness. A laboratory examination revealed a high serum IgE level (1219 U/ml) and a normal α1-antitrypsin level (142 mg/dl), and the flow-volume curve showed severe chronic airflow obstruction (vital capacity (VC) 2.47 litres (72.3% predicted), forced expiratory volume …

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