Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . No prior . There is a large right and small - to - moderate left pleural effusion . Where seen , the lungs are grossly clear . The cardiac silhouette is difficult to assess given silhouetting on the left . Atherosclerotic calcifications noted at the aortic arch . No acute osseous abnormality is identified noting old right lateral lower rib fracture and height loss of lower thoracic vertebral bodies .
    OUTPUT:
    
Large right and small - to - moderate left pleural effusions with presumably associated atelectasis ; although , underlying infection can not be excluded .