Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart appears enlarged with left ventricular prominence . The lung fields are clear . There is no evidence of failure . Widening of the right paratracheal region is thought to represent a somewhat tortuous innominate artery . This could be compared with previous chest x-ray or reports .
    OUTPUT:
    
Chest clear . No edema . No effusions .