Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are within normal limits and without change . Lung volumes are slightly lower compared to prior studies . Crowding of bronchovascular structures could potentially account for apparent hazy areas of opacity in the perihilar regions with loss of sharpness of vessels . No confluent areas of consolidation are observed , and there are no pleural effusions or acute skeletal findings .
    OUTPUT:
    
1 . No segmental or lobar areas of consolidation to suggest a bacterial pneumonia . 2 . Questionable hazy perihilar opacities , possibly due to crowding of bronchovascular structures related to slightly reduced lung volumes . Viral pneumonia is an additional possibility in the appropriate clinical setting .