FINDINGS:
Cardiac silhouette size is top normal.  Mediastinal and hilar contours are
 within normal limits.  Pulmonary vasculature is normal.  Patchy atelectasis is
 noted in the lung bases without focal consolidation.  No pleural effusion or
 pneumothorax is evident.  There are no acute osseous abnormalities.

IMPRESSION:
Mild bibasilar atelectasis.