Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . The left lung is clear . There is no pleural effusion or pneumothorax on the left . There is a moderate - sized pleural effusion on the right , with volume loss and consolidation in the right lower lobe , which could represent atelectasis .
    OUTPUT:
    
Moderate - sized right pleural effusion with likely compressive atelectasis of the right lung base .