Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is stable elevation of the left hemidiaphragm . There is no focal consolidation , pleural effusion or pneumothorax . Atelectasis at the right base . Chain sutures are seen in the left lung . Mild cardiomegaly is stable .
    OUTPUT:
    
No acute process . Minimal atelectasis at the left lower lung base .