Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . There is no focal consolidation , pleural effusion or pneumothorax . Linear opacities in the left lung base are likely atelectasis . The cardiomediastinal silhouette is unremarkable . The imaged upper abdomen is unremarkable . Bones are intact .
    OUTPUT:
    
Low lung volumes with left lower lobe opacities , likely atelectasis .