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Turner Syndrome with Coarctation — RACP Adult Medicine MCQ

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ModerateCardiologyTurner Syndrome with CoarctationRACP Adult Medicine

A 25-year-old woman with Turner syndrome presents with hypertension and a systolic murmur best heard between the scapulae. BP in the right arm is 165/100 mmHg. Femoral pulses are delayed relative to radial pulses. Echocardiography shows a bicuspid aortic valve. What is the most likely inherited condition?

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Correct answer: A — Turner syndrome

Turner syndrome (45,X) is associated with bicuspid aortic valve (30%), coarctation of the aorta (10%), and aortic dilatation/dissection. Radio-femoral delay with upper limb hypertension and a posterior systolic murmur is coarctation. Turner features include short stature, webbed neck, shield chest, and primary ovarian failure.

Reference: ESC – 2024 – Congenital Heart Disease Guidelines