Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is bibasilar atelectasis . There is no pleural effusion , pneumothorax or focal airspace consolidation to suggest pneumonia . The heart size is top normal . The mediastinal contours are normal . Degenerative changes in acromioclavicular joint and orthopedic hardware within the right humerus are noted .
    OUTPUT:
    
No acute intrathoracic process .