Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left upper lobe malignancy treated by CyberKnife was better assessed with previous serial CT scans . There is no new lung consolidation . Mediastinal and cardiac contours are normal in this patient with an atrioventricular pacemaker . There is no pleural effusion or pneumothorax . The lungs are hyperinflated .
    OUTPUT:
    
1 . There is no evidence of pneumonia . 2 . Left upper lobe malignancy treated with CyberKnife was better assessed with previous serial chest CTs .