Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior , there is a new moderate to large right pleural effusion with associated atelectasis . Lung volumes are low . The left lung is grossly clear . There is no definite left pleural effusion . Enlarged Cardiomediastinal contour reflects low lung volumes . There is no pneumothorax .
    OUTPUT:
    
New moderate to large right pleural effusion .