Ramus circumflexissimus--a rare coronary anomaly detected by coronary computed tomography angiography.

We present a case of L-1 type solitary (left) coronary artery that was detected with coronary computed tomography angiography and confirmed by invasive coronary angiography in a female patient with atypical chest pain. Solitary coronary artery anomalies are rare. The L-1 subtype is thought to be a benign type.