Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval development of diffuse , mild to moderate interstitial pulmonary edema . A focal opacity seen in the right middle lobe may represent an early pnemonia in the appropriate clinical setting . Redemonstrated is stable moderate cardiomegaly with small bilateral pleural effusions . Mediastinal and hilar contours are stable . The patient is status post CABG with median sternotomy wires aligned and intact . A transvenous pacemaker is seen with leads terminating in right atrium and right ventricle .
    OUTPUT:
    
1 . Probable right middle lobe pneumonia . Recommend PA / lateral chest radiographs to confirm and further characterize the opacity . 2 . Mild to moderate , diffuse interstitial pulmonary edema . 3 . Stable moderate cardiomegaly with small bilateral pleural effusions .