Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest provided . Patient is status post median sternotomy . Wires are intact and properly aligned . A right lung base patchy infiltrate is concerning for pneumonia . No pneumothorax . Hilar contours are normal . Moderate cardiomegaly is unchanged . Mild vascular congestion and atelectatic change at the lung bases is unchanged .
    OUTPUT:
    
1 . A new , right lung base patchy infiltrate is concerning for pneumonia . 2 . Moderate cardiomegaly , mild vascular congestion and atelectatic change is unchanged from ___ .