Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no new lung consolidation . Left lower lobe atelectasis is chronic since ___ . Multiple emphysematous bullae are seen at the apices . The patient is known with posterior spinal fixation with significant scoliosis . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
There is no evidence of pneumonia .