A 17-year-old boy has a murmur discovered while being examined by his soccer team’s medical assistant. Physical examination shows a systolic murmur loudest over the mid-sternal area at the 2nd intercostal space. There is no change in the murmur with valsalva. He is 6’5″ and 200 pounds. Vitals are normal. Which of the following is the most likely cause of this patient’s cardiac findings?
Asymmetric septal hypertrophy
Atrial septal defect
Bicuspid aortic valve
Cystic medial necrosis
Myxomatous degeneration
