Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is mildly enlarged , similar to ___ . Bibasilar atelectasis is again seen . The lungs are otherwise clear . No pleural effusion , pneumothorax , or pneumomediastinum is seen . Median sternotomy wires are intact . Several metallic clips overlie the cardiac shadow . There are severe degenerative changes of the right shoulder including complete effacement of the right acromiohumeral interval suggesting rotator cuff pathology .
    OUTPUT:
    
Bibasilar atelectasis . No pneumothorax or pneumomediastinum .