Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Surgical clips are noted at the left lung apex and there is elevation of left hemidiaphragm , suggesting postsurgical volume loss on the left . The heart is not enlarged . Aorta is slightly unfolded . No CHF , focal infiltrate , gross effusion , or pneumothorax is detected . Minimal blunting of both costophrenic angles is suggested . A few septal lines at the left lung base laterally could represent small amount of chronic interstitial scarring . There is effacement of the left clavicular companion shadow . Multiple clips noted in the right upper abdomen .
    OUTPUT:
    
Postsurgical changes the left lung apex , with elevation of the left hemidiaphragm . Doubt acute pulmonary process . Minimal blunting of both costophrenic angles is however noted . No gross pleural effusion . Nonvisualization of the left clavicular companion shadow . This could reflect surgical changes in this area . The differential diagnosis includes left supraclavicular lymphadenopathy . Correlation with physical exam is therefore requested .