Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe scoliosis is redemonstrated with persistent moderate cardiomegaly . No focal consolidations concerning for pneumonia are identified . There is no pleural effusion or pneumothorax . There is mild bibasilar atelectasis . The visualized osseous structures are unremarkable . Posterior spinal fusion hardware is unchanged in appearance .
    OUTPUT:
    
No acute intrathoracic abnormalities identified .