Radiology Superior rib notching is/are caused by – a) Hyperparathyroidismb) Poliomyelitisc) Blalock tausing shuntd) Marfan syndromee) Coarctation of aorta A acd B bcd C abc D abd 💡 Explanation Superior rib notching is/are caused by – a) Hyperparathyroidismb) Poliomyelitisc) Blalock tausing shuntd) Marfan syndromee) Coarctation of aorta ✓ Correct Answer: D. abd