Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post prior median sternotomy . Interval removal of the right PICC line . Patchy bilateral airspace opacities are present , greater on the right likely reflect pulmonary edema however underlying pneumonia can not be excluded . Small right pleural effusion . No pneumothorax identified . The size the cardiac silhouette is enlarged but unchanged .
    OUTPUT:
    
Bilateral patchy airspace opacities , greater on the right , likely reflect pulmonary edema however underlying pneumonia can not be excluded .