USMLE STEP 3 MCQ 04 : What is the most likely diagnosis?

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What is the most likely diagnosis?

a) Ventricular septal defect
b) Patent ductus arteriosus
c) Coarctation of aorta
d) Supravalvular aortic stenosis
e) Pulmonary valve stenosis

 



Correct Answer: C

Explanation:


PA chest radiograph shows bilateral rib notching (rib 5-8) with figure-3 sign and significant post-stenotic dilation of the descending aorta


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