Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are diffuse heterogeneous opacities in the bilateral lung fields , more prominent in the perihilar distribution . There is also moderate cardiomegaly . Hilar and mediastinal contours are normal . There is no pneumothorax . Small bilateral pleural effusions can not be ruled out due to overlying opacities . There is engorgement of the pulmonary vasculature .
    OUTPUT:
    
Pulmonary edema likely secondary to decompensated congestive heart failure . Underlying pneumonia can not be excluded . If there is continued clinical concern for infection , consider re-imaging after optimization of fluid status .