Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is mild cardiomegaly but the mediastinal and hilar contours are unremarkable otherwise . There is no pleural effusion or pneumothorax . Vascular calcifications are noted in the aortic arch .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Cardiomegaly .