Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable upright frontal chest radiograph demonstrates mildly low lung volumes , with exaggeration of the cardiac silhouette and bronchovascular crowding . Even allowing for this , heart size is likely mildly enlarged . Diffuse opacity is likely due to moderate pulmonary edema . There is no focal consolidation , pleural effusion , or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No focal consolidation . Moderate pulmonary edema .