Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are within normal limits . The trachea is central . The cardiomediastinal contour is unchanged . No focal consolidation seen . There is mild prominence of the pulmonary vasculature which may reflect a mild degree of congestive heart failure but no frank pulmonary edema . No pleural effusion seen . No pneumothorax .
    OUTPUT:
    
Mild prominence of the interstitial lung markings may reflect mild congestive heart failure but no overt pulmonary edema seen .