Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is top normal . Mediastinal and hilar contours are unremarkable . Both lungs are clear with no focal consolidation , pleural effusion , pneumothorax . Mitral annulus calcification is again noted . Interstitial markings are seen bilaterally , likely representing chronic interstitial disease .
    OUTPUT:
    
No acute cardiopulmonary process .