Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new right middle lobe opacity concerning for pneumonia . As compared to the prior CT , left lower lobe opacities may represent scarring or residual infection . The cardiac , hilar and mediastinal contours are normal . No pleural abnormality is seen .
    OUTPUT:
    
New right middle lobe pneumonia . Residual opacities at the left lung base may represent scarring or residual infection . Follow - up after treatment is recommended .