Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left hilum remains prominent and is due to the patient 's known tumor , and appears stable . Otherwise , the lungs are clear with no evidence of a consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is at the upper limits of normal and stable . No acute fractures are noted .
    OUTPUT:
    
No evidence of acute infection .