Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior exam , there is new mild pulmonary edema and a possible new tiny left pleural effusion . There is no right pleural effusion . No focal opacity is identified to suggest pneumonia . Significant biapical pleural - parenchymal scarring is unchanged . There is no pneumothorax . The mediastinal contours are normal . The heart size is at the upper limits of normal . Sternal wires are intact .
    OUTPUT:
    
New mild pulmonary edema and possible tiny left pleural effusion .