Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Low lung volumes . There is a small left pleural effusion . Heart size is normal . There are no focal opacities concerning for pneumonia . The mediastinal and hilar contours are normal . No pneumothorax .
    OUTPUT:
    
Small left pleural effusion . Otherwise , unremarkable examination of the chest .