Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no focal consolidation or pneumothorax . Mediastinal and hilar contours are within normal limits . The cardiac silhouette is mildly enlarged . No vascular congestion , edema or pleural effusions are evident .
    OUTPUT:
    
No acute cardiopulmonary process . Mild cardiomegaly .