Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the most recent prior study , the inspiratory lung volumes are slightly decreased . The lungs are clear without focal consolidation concerning for pneumonia , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits .
    OUTPUT:
    
No acute cardiopulmonary process .