Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is stable appearance of severe emphysema . Increased opacity in the left upper lobe surrounding the known lesion is consistent with hemorrhage . No pneumothorax is present . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Increased opacity in the left upper lobe surrounding the known lesion is consistent with hemorrhage with no evidence of pneumothorax .