Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a somewhat prominent appearance of the left hilum as compared to the right , likely related to prominent vasculature . Well expanded lungs are clear . There are no pleural effusions or pneumothorax . The cardiomediastinal contours are normal . Pulmonary vascularity is normal .
    OUTPUT:
    
No evidence of focal pneumonia .