Teenager with left arm tingling Pediatric Imaging Cardiovascular October 20, 2021October 7, 2021 CT angiogram of the chest with 3D reconstruction shows diffuse narrowing of the left subclavian artery beginning at its origin along with diffuse narrowing of the left vertebral artery beginning at its origin. The diagnosis was Takayasu arteritis. Related Published October 20, 2021October 7, 2021