Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size , mediastinal , and hilar contours are normal . The lungs are clear and well expanded . There is no pleural effusion , pneumothorax , or focal opacity . The osseous structures are unremarkable , except for slightly worsened degenerative osteophytic changes of the thoracic spine , best seen on the lateral view .
    OUTPUT:
    
1 . No acute cardiopulmonary process , specifically without evidence of a pneumonia .