The CTA demonstrates:
short segment abrupt stenosis of the post-ductal aorta, 10 mm distal from the left subclavian artery with moderate dilatation of the post-stenotic descending aorta
the level of the ligamentum arteriosum is best seen on coronal and sagittal oblique reconstruction
enlargement of the intercostal and internal mammary arteries
no evidence of rib notching on the bone window or 3D-VR
left ventricular hypertrophy
no mediastinal or hilar lymphadenopathy
no lung lesion (lung window not shown)