Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest were obtained . The lungs are hyperinflated with flattening of the diaphragms , suggesting chronic obstructive pulmonary disease . There are bibasilar opacities which most likely relate to atelectasis , underlying aspiration may be present . No pleural effusion or pneumothorax is seen . The aorta is tortuous . The cardiac silhouette is top normal . There is mild anterolisthesis of a lower thoracic vertebral body and over the vertebral bodies inferior to it . Surgical clips in the upper abdomen .
    OUTPUT:
    
1 . Flattening of the diaphragms suggests chronic obstructive pulmonary disease . 2 . Mild bibasilar opacities may be due to atelectasis or mild aspiration .