肺气肿病人死后尸检胸腔被剖开，见肺表面数目众多的明显的肺大疱，是极度扩张的含气区，它从胸膜下膨胀起来。肺气肿具有典型的特征，肺泡被破坏，肺实质丧失，以致形成持久性的含气区增大。
The chest cavity is opened at autopsy to reveal numerous large bullae apparent on the surface of the lungs in a patient dying with emphysema.Bullae are large dilated airspaces that bulge out from beneath the pleura.Emphysema is characterized by a loss of lung parenchyma by destruction of alveoli so that there is permanent dilation of airspaces.
