Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are clear of consolidation . Biapical scarring right worse than left is noted . Enlargement of the aorta , particularly in the region of the arch raising possibility of aneurysm . Cardiomediastinal silhouette is otherwise unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . Enlarged arch of the aorta raising possibility of an aneurysm .