Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable chest radiograph obtained . Compared to the prior study , there is increased interstitial edema with small bilateral effusions and mild left lower lobe atelectasis . Cardiomediastinal silhouette appears grossly within normal limits . No pneumothorax . Bony structures intact .
    OUTPUT:
    
Mild interstitial edema with small bilateral pleural effusions and mild left lower lobe atelectasis .