Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Marked volume loss in the right lung is related to previous right upper lobe resection and radiation therapy as demonstrated on prior CT chest of ___ . Cardiac silhouette is upper limits of normal in size . Pulmonary vascularity is within normal limits allowing for relatively low lung volumes . No focal areas of consolidation are present within the lungs , and there are no definite pleural effusions . Scarring along the right hemidiaphragm contour appears unchanged as well as right apical thickening , likely related to previous lung cancer treatment .
    OUTPUT:
    
No radiographic evidence of pneumonia .