Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . The aorta is mildly unfolded with atherosclerotic calcifications noted at the aortic arch . Diffuse ground - glass airspace opacities are noted in both lungs with mild perihilar haziness . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild to moderate pulmonary edema . An underlying atypical infectious process is not excluded in the correct clinical setting and follow up radiographs after diuresis are recommended .