Types
proximal acinar emphysema (centrilobular emphysema or centriacinar emphysema)
panacinar emphysema (panlobular emphysema)
distal acinar emphysema
irregular emphysema
localized giant bullous emphysema
Etiology
alpha-1-antitrypsin deficiency
toxic agents and drugs
constitutional connective tissue disorders
See also
simple airspace enlargement (nonemphysematous airspace enlargement)


