Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Right apical scarring is similar to the prior CT . Left basilar opacity is new from ___ and may represent atelectasis or infection . There is no pleural effusion or pneumothorax . Heart size is normal . The aorta is tortuous with aortic knob calcifications . Hilar contours are stable .
    OUTPUT:
    
Left basilar opacity is new from ___ and may represent atelectasis or infection . No effusion .