Thoracic origin of a single renal artery with a normal position of the kidney is a very rare anatomical variant with just a dozen cases depicted in the medical literature. In this case report we describe an incidental finding of a main renal artery arising from the thoracic aorta at the 11th thoracic vertebral level in an asymptomatic 57 year-old man in a routine computed tomography (CT) on follow-up for chronic pancreatitis.