Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volume is low . Bibasilar opacities are similar to before and likely atelectasis . Cardiac silhouette is mildly enlarged . There is no pneumothorax or pleural effusion . Bronchial wall is thickened , similar to before .
    OUTPUT:
    
No acute cardiopulmonary process .