Which of the following causes rib-notching on the chest radiograph?
Coarctation of aoa is associated with notching, typically of the inferior posterior aspects of the ribs (3rd through 8th). The number and location of notched ribs provides information regarding location of the coarctation. Ref: CURRENT Diagnosis & Treatment: Nephrology & Hypeension chapter 42; Essence of Paediatrics By Khan, 4/e page 153-8.
IVC occlusion
Coarctation of aoa
Bidirectional Glem shunt
Modified Blalock-Taussing shunt