Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest , AP and lateral . The opacity seen on the prior radiograph in the right lower lobe has minimally worsened . The upper lungs are clear . A small left pleural effusion is unchanged . Cardiomegaly is chronic . There is mild pulmonary edema . The patient is status post mitral valve replacement and CABG . There is no pneumothorax .
    OUTPUT:
    
1 . Interval minimal worsening of right lower lobe pneumonia since the prior examination . 2 . Mild decompensated congestive heart failure .