Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . There is a moderate - to - large right - sided pleural effusion . There is also likely right middle and lower lobe atelectasis . Linear opacity at the left lung base suggestive of atelectasis and there is suggestion of left apical calcified granulomas , but there is no confluent consolidation or left effusion . The cardiomediastinal silhouette is within normal limits . Hypertrophic changes are seen in the spine . Surgical clips in the right upper quadrant suggest prior cholecystectomy . Osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
Moderate - to - large right - sided pleural effusion with components of middle and lower lobe atelectasis .