Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is seen . The cardiomediastinal silhouette is stable . Calcifications are seen within the aortic knob , unchanged from prior exam . No bony abnormality is detected .
    OUTPUT:
    
No radiographic evidence for acute cardiopulmonary process .