Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate clear lungs without focal consolidation . There is no pleural effusion or pneumothorax . The cardiomediastinal and hilar contours are stable with enlargement of the pulmonary arteries seen since ___ .
    OUTPUT:
    
Clear lungs with stable cardiomediastinal contour .