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当腺泡近端的呼吸性细支气管扩张，而远端的肺泡扩张不明显，腺泡中央型肺气肿就会发生。
Centrilobular emphysema occurs with loss of the respiratory bronchioles in the proximal portion of the acinus, with sparing of distal alveoli.
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支气管造影可显示出肥大腺体的腺管已经扩张和肿大。
Bronchography may reveal dilated enlarged ducts of hypertrophic gland.
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