Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is mildly enlarged but similar compared to the previous study . The mediastinal and hilar contours are unremarkable . Bronchovascular structures are crowded without overt pulmonary edema . There is no focal consolidation , pleural effusion or pneumothorax . Hypertrophic changes are re - demonstrated in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .