Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are low limiting assessment . Left basal consolidation is concerning for atelectasis and / or pneumonia . No large effusion or pneumothorax . Heart mediastinal contour is stable . Bony structures intact .
    OUTPUT:
    
Left basal opacity concerning for atelectasis and / or pneumonia .