Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded and clear . No focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . The thoracic aorta appears slightly widened compared to the prior exam . The heart size is normal . The hila and pleura are within normal limits .
    OUTPUT:
    
1 . No focal consolidation to suggest pneumonia . 2 . Possible dilatation of the thoracic aorta compared to the prior exam , not fully evaluated with chest radiography . Recommend a CT to further evaluate the aorta .