Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable frontal radiograph demonstrate lower lung volumes with no definite consolidation . Interstitial edema has improved when compared to chest radiograph 1 day prior . There is volume loss with in the lower left lobe with stable appearing pleural effusion .
    OUTPUT:
    
Improving interstitial edema . Low lung volumes . No new focal consolidation .