Figure 3. Type I Takayasu arteritis in a 31-year-old woman. Coronal digital subtraction angiogram of the supraaortic vessels shows focal stenosis of the proximal portion of the left subclavian artery (large arrow). The right subclavian artery is aberrant. There is severe stenosis at the origin of the right vertebral artery (small arrow). The right common carotid artery (arrowheads) is almost occluded at its origin and is retrogradely filled by collateral vessels.