Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large left upper lobe mass containing fiducial markers is re - demonstrated , as seen on the prior PET - CT , and increased when compared to the prior chest radiograph exam . Heart size is normal . Right mediastinal and hilar contours are unchanged . Elevation of the left hemidiaphragm is noted . The lungs otherwise are otherwise clear with no new areas of consolidation identified . No pulmonary vascular congestion is seen . No pleural effusion or pneumothorax is noted . Remote bilateral rib fractures are noted .
    OUTPUT:
    
Re - demonstration of left upper lobe mass compatible with known non-small cell lung cancer . No acute cardiopulmonary abnormality otherwise noted .