Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low and there compressive changes at the bases . There is obscuration of the left hemidiaphragm . There is mild pulmonary vascular redistribution . It is unclear how much of this is due to volume loss or if and it infectious infiltrate is present .
    OUTPUT:
    
Volume loss / infiltrate in the lower lobes left greater than right .