Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The exam is limited by low lung volumes and body habitus . Within the limitations , there is no change in the diffuse interstitial prominence , possibly due to chronic vascular congestion . There is no focal air space consolidation , pleural effusion , or pneumothorax . The mediastinal contour remains slightly prominent , although unchanged . The heart size is normal . Extensive flowing anterior osteophytes are noted along the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .