Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates hyperexpanded lungs . Severe cardiomegaly is unchanged ; the heart obscures at least ___ % of the lungs . Mild increased interstitial markings and engorged pulmonary vasculature suggest mild interstitial pulmonary edema . Probable small bilateral pleural effusions are new over the interval . No pneumothorax .
    OUTPUT:
    
Mild increased interstitial markings and engorged pulmonary vasculature suggest mild interstitial pulmonary edema . The heart obscures at least ___ % of the lungs , and lateral view would be helpful in assessing for retrocardiac consolidation .