Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Improved aeration is seen on the current exam . Previously seen bibasilar opacities are no longer visualized . The lungs are now clear . No significant pleural effusion seen , noting that the inferior most aspect of the right costophrenic angle is excluded from the field of view on the lateral exam . Cardiac silhouette is enlarged with a similar configuration compared to prior , potentially due to cardiomegaly or potentially effusion . No acute osseous abnormality is identified .
    OUTPUT:
    
Cardiomegaly with possible pericardial effusion as previously described . No superimposed acute cardiopulmonary process .