Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size . Large left lower lobe lobulated mass is similar to prior . Right lung is clear . No pneumothorax . Right upper quadrant cholecystectomy clips are present .
    OUTPUT:
    
Large lobulated left lower lobe mass , similar to prior . No evidence for superimposed acute process .