Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were performed . Extrapleural fat thickens the pleural margins , but there is no pleural effusion , pneumothorax or focal airspace consolidation . There is streaky bibasilar atelectasis . The cardiac and mediastinal contours are normal . The known scattered calcified nodules are not well visualized on this study . Mild degenerative changes of the lower thoracic spine are noted .
    OUTPUT:
    
No acute cardiopulmonary process .