Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . There is a moderate - sized right pleural effusion which allowing for differences in technique appear slightly increased in size since prior CT examinations . Focal lucency and air-fluid level within the pleural fluid suggests the presence of a hydropneumothorax . No focal consolidation is identified .
    OUTPUT:
    
Moderate - sized right pleural effusion , which allowing for differences in technique , appears slightly increased in size since prior CT examinations . Focal lucency and an air - fluid level within the right pleural fluid suggests the presence of a hydropneumothorax .