Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal views of the chest were obtained . The lungs remain hyperinflated with flattening of the diaphragms , suggesting chronic obstructive pulmonary disease . There are bibasilar opacities , likely due to atelectasis / scarring . Relative lucency of the upper lobes suggests underlying pulmonary emphysema . No definite focal consolidation is seen . The aorta remains somewhat tortuous . The cardiac silhouette is top normal . There are few chronic - appearing rib deformities along the posterior lateral lower left ribs .
    OUTPUT:
    
COPD and bibasilar atelectasis / scarring without definite acute cardiopulmonary process .