Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained . Lung volumes are low , accentuating interstitial markings . There is no consolidation , effusion , or pneumothorax . A curvilinear retrocardiac opacity is unchanged since ___ , likely represent scarring . Mild cardiomegaly is unchanged . Aortic arch calcifications are mild . Old left sided rib fractures are noted . Degenerative changes with with loss of height of multiple thoracic vertebral bodies are unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .