Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes and causing bilateral linear atelectasis . There are no pleural effusions . Patchy opacities from the ___ radiograph appear to have mostly cleared . Pacemaker is seen with leads terminating in appropriate position . Cardiomediastinal silhouette is mildly enlarged . No pleural effusion or pneumothorax .
    OUTPUT:
    
No overt evidence of an infectious process .