Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . There is widespread opacification , but predominantly involving the right upper and left lower lungs , new since the prior study .
    OUTPUT:
    
Widespread opacities , but with a heterogeneous distribution , including more focal right upper and left lower lung opacities , overall most worrisome for widespread infection , with asymmetric pulmonary edema a less likely consideration . Clinical correlation is suggested .