Sinoatrial Nodal Artery Arising from the Right Posterolateral Artery: A Rare Anatomical Variant.

We discuss a case report of a 66-year-old male with no prior cardiac history who presented to the hospital with persistent hiccups and shortness of breath. Following a positive nuclear stress test and cardiac catheterization, a rare anatomical variant of a sinoatrial nodal artery originating from the right posterolateral artery was revealed.