Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal , pleural and pulmonary structures are unremarkable . There is bibasilar atelectasis present . There is no pneumothorax , consolidation or pleural effusion . There are degenerative changes seen in the acromioclavicular and glenohumeral joints . Several old left rib fractures are again noted .
    OUTPUT:
    
No acute cardiopulmonary process .