Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . A transvenous pacing wire is seen entering the right IJ with its tip in the region of the right ventricle . Multiple overlying EKG leads limit the evaluation . Allowing for this , there are coarsened interstitial markings suggestive of underlying emphysema with possibly a component of mild edema . No large effusions are seen . Bony structures are intact .
    OUTPUT:
    
Transvenous pacer enters right IJ with tip in region of right ventricle . Probable mild edema superimposed on a background of emphysema .