Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval removal of the ET tube , NG tube , mediastinal drain , and chest tube . No definite pneumothorax . Cardiac size is normal and cardio mediastinal silhouette is unchanged . Bilateral low lung volumes again noted . Left mid lung and left lung base opacities likely reflect atelectasis . Small left pleural effusion unchanged . Again noted is the median sternotomy wires . Right IJ catheter tip terminates in the lower SVC .
    OUTPUT:
    
No pneumothorax status post removal of chest tube . No significant interval change in appearance of left base with persistent atelectasis and small pleural effusion .