Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are low . The cardiac silhouette size remains borderline enlarged , unchanged . Mediastinal and hilar contours are normal . The pulmonary vascularity is not engorged . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .