Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate fairly well - aerated lungs . The heart is increased in size compared to ___ , now mildly enlarged . There are bilateral diffuse opacities , compatible with mild pulmonary edema . No pleural effusion or pneumothorax is appreciated . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Mild cardiomegaly and pulmonary edema .