Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The heart size is normal . The aorta is tortuous with atherosclerotic calcifications again seen at the aortic knob . Mild atelectatic changes are noted in the lung bases . No pleural effusion or pneumothorax is seen . There is no pulmonary edema . Mild elevation of the right hemidiaphragm is unchanged . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .