Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal contours are stable . Previously noted hilar prominence is improved on the current study . There is no pleural effusion or pneumothorax . Lungs are well - expanded without new focal consolidation concerning for pneumonia .
    OUTPUT:
    
1 . No new pulmonary parenchymal opacity . No pleural effusion . 2 . Improvement hilar vascular prominence compared to the most recent prior study .