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Left sided superior vena cava

Case contributed by Frank Gaillard
Diagnosis certain
x-ray

Frontal X-ray of the chest demonstrates the two wires from the right-sided permanent pacemaker wires passing to the left of the midline before descending posterior to the heart. This is consistent with a left-sided SVC.

Case Discussion

Left sided SVC is one of the more frequent caval abnormalities

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