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A 17-year-old male with absent right SVC and persistent LSVC draining into the CS. a Axial and b short-axis cine balanced SSFP images and c coronal maximum intensity projection image from thoracic MR angiography demonstrating a persistent LSVC (a, c, arrow) draining into the right atrium (b, RA) via the CS (b). The azygous vein is left sided and drains into the persistent LSVC (a, asterisk)
