Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The appearance of the chest is similar to 2 days prior with opacities in the left mid to lower lung including the lingula and the right mid to lower lung , worrisome for multifocal pneumonia . Subtle opacity previously seen in the right upper to mid lung is less well seen on the prior study and may have decreased in extent . Trace pleural effusion is difficult to exclude . Mild biapical pleural thickening is re - demonstrated . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Possible slight improvement in focal right upper to mid lung opacity seen on the prior study . Otherwise , no significant interval change in findings worrisome for multifocal pneumonia . Persistent enlargement of the cardiac silhouette .