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Figure 2 A 15-year-old male Italian soccer player with a history of exertional syncope one year before death who died suddenly while running during the second half of a game. (A) A 12-lead ECG performed 10 months before death, as part of routine preparticipation screening, is within normal limits. (B) View of the aortic root; RCA arises normally from the right aortic sinus (arrow), and the LMCA arises anomalously from the right sinus with an acute angle take-off producing a slit-like lumen (arrowhead).