Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate moderate cardiomegaly , increased since prior exams . The thoracic aorta is unfolded , with atherosclerotic calcifications . There is mild perihilar vascular congestion without frank edema . The mediastinal and hilar contours are within normal limits . There is no pneumothorax or large effusion .
    OUTPUT:
    
Prominent cardiomegaly and perihilar vascular congestion , combination suggestive of congestive heart failure .