Angiograms of coarctations of the aorta

(A) Angiogram of a two-month female infant with Turner syndrome. Arrow showing discrete area of narrowing. Arrowhead is showing hypoplastic aortic arch. Dashed arrow is showing a very small patent ductus arteriosus (PDA).
(B) Transverse aortic arch angiogram image in a 31-year-old male patient who presented with hypertension and was found to have severe coarctation. The angiogram reveals presence of severe narrowing distal to the left subclavian artery (arrow).