Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable including mild to moderate cardiomegaly . There is diffuse bilateral lung opacification which is more suggestive of pulmonary edema than pneumonia although there may be a confluent component in the right lower lung for which the possibility of developing pneumonia could be considered . There is also retrocardiac opacification but not well delineated but commonly opacity in this area is due to atelectasis and this appears decreased .
    OUTPUT:
    
Findings most suggestive of moderate pulmonary edema . Coinciding pneumonia is not excluded and may be appropriate to obtain short - term follow - up radiographs to reassess .