Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate a large left - sided pleural effusion with adjacent compressive atelectasis , which has improved slightly over the interval . The patient is status post right upper lobe resection . The right lung field appears clear . There is fluid seen in the neo-esophagus . The cardiomediastinal and hilar contours are unchanged . There is no pneumothorax . Areas of patchy opacification in both lungs have decreased in density over the interval .
    OUTPUT:
    
Large left - sided pleural effusion with adjacent compressive atelectasis , slightly improved over the interval .