Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest provided . Right central venous line ends at the cavoatrial junction . Patient is status post median sternotomy wires are intact and proper alignment . Patient is status post cardiac valve replacement . Significantly worsened right lower lobe opacity is concerning for pneumonia . A small , right pleural effusion is worsened . There is no pneumothorax . Hilar contours are normal . Moderate cardiomegaly is unchanged .
    OUTPUT:
    
Significantly worsened right lower lobe focal opacity is concerning for pneumonia .