Inter-arterial course of left coronary artery in a case of non-specific chest pain

A 17-year-old female presented with a history of short and sharp chest pain which was not exacerbated by effort for one year. Computed tomography angiography revealed a left coronary artery arising from the right coronary sinus with inter-arterial compression. In conclusion, computed tomography angiography can give excellent information about the anomalous origin and course. A high index of suspicion is needed in the diagnosis of coronary artery anomalies with an insidious clinical course.