Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A focal area of more confluent opacification is seen on a background of diffuse symmetric prominent perihilar and upper lobe vascular markings , likely representing mild pulmonary edema . Heart is normal in size and cardiomediastinal contours are unremarkable . There is no pleural effusion and no pneumothorax .
    OUTPUT:
    
1 . Focal area of asymmetrically increased opacification in the right lower lobe is compatible with pneumonia in the appropriate clinical context . 2 . Mild pulmonary edema