A 17-Year-Old Girl Is Evaluated Due to Decreased Exercise Tolerance

A 17-year-old girl is evaluated due to decreased exercise tolerance and fatigue.  She has no known medical conditions and takes no medications.  Blood pressure is 110/60 mm Hg and pulse is 88/min.  The lungs are clear on auscultation.  Cardiac examination reveals a parasternal heave, and a widely split second heart sound is heard throughout the respiratory cycle.  A systolic ejection murmur is present at the left upper sternal border.  Distal pulses are normal.  Echocardiography of this patient is most likely to demonstrate which of the following findings?

A) A
B) B
C) C
D) D
E) E

Correct Answer:

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