Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , no significant change is detected . Again seen is cardiomegaly , with a calcified aorta and prominent main pulmonary artery silhouette . Slight upper zone redistribution is unchanged . No overt CHF , focal infiltrate or consolidation , pleural effusion , or pneumothorax is identified . Lungs are borderline hyperexpanded . Posttraumatic changes at the left distal clavicle are unchanged . Cervical spinal fusion hardware is in unchanged position .
    OUTPUT:
    
No radiographic evidence of pneumonia . No significant change compared with ___ .