Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is borderline enlarged . Mediastinal and hilar contours are normal . Lungs are clear . No focal consolidation , pleural effusion or pneumothorax is identified . Pulmonary vasculature is normal . An azygos fissure is incidentally noted . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .