Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size , mediastinal and hilar contours are normal . There are no focal areas of consolidation to suggest the presence of pneumonia . Mild bronchial wall thickening was also present on the prior study and may reflect chronic airways inflammation . There are no pleural effusions or acute skeletal findings .
    OUTPUT:
    
No radiographic evidence of pneumonia .