Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear of consolidation , pleural effusion or pneumothorax . Heart appears mildly enlarged , although this is likely exaggerated by low lung volumes . No acute osseous abnormalities identified . At least one surgical clip is incidentally noted in the right upper quadrant .
    OUTPUT:
    
Clear lungs . Heart size top - normal .