Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . Mediastinal and hilar contours are unchanged . Mild pulmonary edema appears relatively unchanged compared to the prior study . There is likely a small right pleural effusion . No pneumothorax or new areas of focal consolidation is present . No acute osseous abnormalities are detected . Degenerative changes of both acromioclavicular joints are noted .
    OUTPUT:
    
Mild pulmonary edema and trace right pleural effusion , relatively unchanged compared to the prior exam .