Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear density at the right lung base appears similar compared to prior and likely represents atelectasis . No pneumothorax is detected . Blunting of the left costophrenic angle appears unchanged compared to prior and may represent pleural thickening rather than effusion . The aorta is calcified and unfolded . Heart size is within normal limits . There is mild flattening of the hemidiaphragms and expansion of the retrosternal airspace , suggestive of lung hyperinflation .
    OUTPUT:
    
Hyperinflated lungs with basilar atelectasis .