Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are expanded and clear . The heart is top - normal in size , unchanged since ___ . There is no consolidation or pulmonary edema . There is no pleural effusion . The pulmonary vasculature , hila and pleura are normal .
    OUTPUT:
    
No pneumonia or pulmonary edema . Stable , upper limit of normal heart size .