Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiograph demonstrates well - expanded and clear lungs , unchanged in appearance ___ . Stable bulge at aortic arch corresponds to patient 's known pseudoaneurysm as seen on CT chest dated ___ . No pleural effusion or pneumothorax . Heart size , mediastinal contour and hila are unremarkable .
    OUTPUT:
    
No pneumonia or CHF . Known aortic pseudoaneurysm .