Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The apical component of the hydropneumothorax has decreased and is now tiny . The pleural effusion component is also decreased in size , however , small pockets of air - fluid levels remain . Atelectasis in the right lower lobe has decreased . There is very mild bilateral interstitial edema . The pigtail catheter is again seen terminating in the right base . The heart size is unchanged and the aorta is tortuous . The mediastinal silhouette and hilar contours are unremarkable .
    OUTPUT:
    
1 . Overall decrease in size of hydropneumothorax . A tiny apical air collection remains and several small pockets of air - fluid levels are still evident . 2 . Decreasing atelectasis in the right lower lobe . 3 . Very mild interstitial edema has not significantly changed .