Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is again moderately enlarged . The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . The lungs show no focal opacification . There is no pleural effusion or pneumothorax . The interstitium shows again mild diffuse prominent appearance , although less striking , and there is again mild upper zone redistribution of pulmonary vascularity .
    OUTPUT:
    
Interstitial process suggesting mild pulmonary edema although less striking than before .