False about Coarctation of Aorta: (A) Double bulge sign is seen, (B) Double aortic knuckle, (C) Rib notching is seen in 1-8 ribs, (D) Rib notching increases with age
Answer is C. Rib notching is absent in 1st and 2nd ribs because first and second intercostal arteries do not take part in Collateral Circulation.