CT
The CTA demonstrates:
- short segment abrupt stenosis of the post-ductal aorta, 30 mm distal from the left subclavian artery with mild dilatation of the post-stenotic descending aorta
- marked enlargement of the intercostal, bronchial, and internal mammary arteries
- rib notching at several levels
- left ventricular hypertrophy
- no mediastinal or hilar lymphadenopathy
- no pleural or pericardial effusion
- no lung lesion (lung window not shown)