Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are somewhat low though allowing for this the lungs appear clear aside from mild left basal atelectasis . No large effusion or pneumothorax . Cardiomediastinal silhouette is normal . Bony structures are intact .
    OUTPUT:
    
Mild left basal atelectasis , otherwise unremarkable .