A rare type of interatrial communication: levoatrial cardinal vein

A 69-year-old male had occurred three syncope with consciousness recovery of ∼1–2 s since 5 years ago. The clinical and other laboratory examinations were unremarkable. Transthoracic echocardiography (Panel A) and multidetector computed tomography angiography (CTA) (Panel B) demonstrated cardiac structure is normal. The maximum intensity projection CTA (Panels C and D) and multiplanar reconstruction (Panel E) showed a venous structure with a...