Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Bilateral parenchymal opacities have slightly improved , particularly at the right lung base . There is an element of right lung volume loss . Left basilar opacity is likely atelectasis . There is no pleural effusion or pneumothorax . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Slight improvement in bilateral parenchymal opacities , particularly in the right lower lobe .