Persistence of levoatrial cardinal vein with an interatrial course

Abstract

A 39-year-old woman presented with a history of chest pain, palpitations, and syncope. A coronary CT angiography revealed normal coronary arteries with a normal left atrial outflow. The only finding on the CT angiography was a persistent levoatrial cardinal vein with an interatrial course [Fig.1]. The clinical and rest of other laboratory evaluations were unremarkable. The patient remained asymptomatic during an observation period and was discharged without treatment. During the follow-up visit, the patient remained asymptomatic. The levoatrial cardinal vein is a very rare embryonic remnant. It originates from a pulmonary vein or the left atrium and drains into the superior vena cava or the innominate vein. It usually persists with an obstruction to the outflow of the left atrium, in cases of mitral stenosis or atresia, and aortic stenosis or atresia. It has also been reported to be associated with cor triatriatum. 1 Important differential diagnoses to consider are persistent foramen ovale and the frequently seen incomplete fusion of the layers of the interatrial