Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . There is large right - sided pleural effusion . Based on the relative inferior displacement of the right hilum and configuration of the pleural reflections on the lateral , there is likely complete right lower lobe collapse . The left lung is grossly clear . Cardiac silhouette is not well assessed due to silhouetting on the right and low lung volumes . No acute osseous abnormality is identified .
    OUTPUT:
    
Large right - sided pleural effusion and right lower lobe atelectasis .