Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are relatively hyperinflated . Subtle increase in interstitial markings bilaterally , right slightly greater than left , may be due to mild interstitial edema . . No pleural effusion or pneumothorax is seen . The cardiac silhouette is moderate to severely enlarged . Aortic knob calcification is seen . Mild prominence of the hila may be due to pulmonary vascular engorgement .
    OUTPUT:
    
Mild increase in interstitial markings bilaterally , right greater than left , raises concern for mild interstitial edema . Mild prominence and indistinctness of the central pulmonary vasculature suggest pulmonary vascular engorgement . Enlarged cardiac silhouette .