Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and pericardial stripping . There is persistent right pleural effusion which may be partially loculated and may have increased in size , is concerned that is increased in size given the patient is upright in both images . Opacity is again seen in the mid - to - lower lung which may be mildly increased . Left perihilar and left basilar opacity is again seen . There is blunting of the left costophrenic angle , raising concern for a small left pleural effusion . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Likely interval increase in right pleural effusion which may be partially loculated . Small left pleural effusion . Increased perihilar and right mid - to - lower lung opacities may relate in part to pulmonary edema ; however , superimposed infectious process may also be present .