Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The heart size is normal . The descending aorta is slightly ectatic , unchanged and likely secondary to mild dextroconvex scoliosis of the thoracic spine . The mediastinum and hila are within normal limits and unchanged . Unchanged mild dextroconvex scoliosis of the lower thoracic spine . Degenerative changes in the visualized thoracic spine are overall unchanged . Surgical clips projecting over the right upper abdomen are again noted .
    OUTPUT:
    
No acute intrathoracic process . No significant interval change .