Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views the chest were viewed . Heart size is mildly enlarged . Mediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . Lung volumes are slightly low . The lungs are well - expanded and clear . The pulmonary vasculature is within normal limits .
    OUTPUT:
    
No acute cardiopulmonary process . Heart size mildly enlarged .