Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: First heart size remains moderately enlarged . The aorta is unfolded and demonstrates diffuse atherosclerotic calcifications . Hilar contours are relatively unchanged . There is mild interstitial pulmonary edema . No pleural effusion or pneumothorax is identified . There are multilevel mild degenerative changes throughout the thoracic spine .
    OUTPUT:
    
Mild interstitial pulmonary edema .