Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Right pleural effusion with a relatively rounded contour is stable in appearance , possibly slightly decreased . Adjacent atelectasis is seen . The left lung is clear . No pneumothorax . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Stable configuration of right pleural effusion which may be minimally decreased in size .