Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior exam , there appears to be increased interstitial prominence , although no overt pulmonary edema . Stable bronchiectasis and scarring is again noted at the right base . There is no dense consolidation . There is no pleural effusion or pneumothorax . Severe cardiomegaly is present . A pacemaker is in place with wires in unchanged position . The patient is status post a CABG . The sternal wires are intact . There are severe degenerative changes of the bilateral shoulders .
    OUTPUT:
    
1 . Mild interval increase in interstitial prominence without definite pulmonary edema . 2 . Stable right lower lobe scarring and bronchiectasis .