吸收性肺不张: (Absorption atelectasis) 1.)小气道早期闭合使其远端气体吸收，特别是麻醉的诱导和维持时使用100%氧气，更加速了肺泡气的吸收和塌陷。

Radiograph：There is homogeneous opacification of the right upper lobe with a Golden S sign in keeping with a right upper lobe tumor and associated obstructive atelectasis. There is mild blunting of ...