Presentation
Chest pain.
Patient Data
Age: 45 years
Gender: Male
From the case:
Sinoatrial nodal artery
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A severe stenotic lesion of the left circumflex coronary artery (CAD-RADS 4) is best seen in the curved planar reformatted image.
A normal sinoatrial nodal artery originates from the proximal right coronary artery.
From the case:
Sinoatrial nodal artery
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The arrows point to the sinoatrial (SA) nodal artery.
Case Discussion
The sinoatrial (SA) nodal artery is a small artery that originates from the right coronary artery in 60% of cases and from the left coronary artery in 40% and supplies the sinoatrial node (the pacemaker) of the heart.
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