Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . Lung volumes are somewhat low . Mild linear opacity at the left lung base is most compatible with atelectasis . The lungs appear otherwise clear without signs of pneumonia or CHF . No pleural effusion or pneumothorax is seen . Heart size is stable and within normal limits . Aorta is slightly unfolded with atherosclerotic calcifications along the knob . Bony structures appear intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute findings in the chest .