Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of top normal size with normal cardiomediastinal contours . The aorta is mildly tortuous , similar to ___ . Bibasilar atelectasis is again seen , unchanged since the most recent prior exam . No new pulmonary consolidation , pleural effusion , or pneumothorax . The osseous structures are unremarkable . No radiopaque foreign bodies .
    OUTPUT:
    
Bibasilar atelectasis , unchanged since ___ . No acute cardiopulmonary process .