Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Overlying EKG leads are present . Previously noted right IJ central venous catheter is been removed as well as the feeding tube . Retrocardiac opacity may reflect the presence of a left lower lobe pneumonia . Hila appear congested . Cardiomegaly is unchanged . Subtle opacity at the right lateral lung base may also represent a site of pneumonia . No overt signs of edema . Mediastinal contour is unchanged . Bony structures are intact .
    OUTPUT:
    
1 . Retrocardiac opacity may reflect effusion and possible pneumonia . 2 . Subtle opacity in the right lateral lung base may also represent pneumonia . 3 . Congestion hila without overt edema . 4 . Stable cardiomegaly .