Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear and without focal consolidation , pulmonary edema or pneumothorax . The heart is normal in size , and the ascending aorta is dilated or tortuous , unchanged from prior exams . There is a venous stent in the left brachiocephalic vein .
    OUTPUT:
    
No acute cardiopulmonary process .