Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is stable appearance of right lung volume loss with elevation of the right hemidiaphragm status post right upper lobe lobectomy . New increased opacity is seen in the left mid lung . No pleural effusion or pneumothorax . No change in heart size or mediastinal contours .
    OUTPUT:
    
New opacity in the left mid lung concerning for pneumonia .