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Published online by Cambridge University Press: 27 January 2025
A 69-year-old man had an abnormal intracardiac course of a pacemaker lead. CT angiography demonstrated a window between the right upper pulmonary vein and the superior caval vein. The window was treated with covered stents in the superior caval vein, which was complicated by a chronic pericardial effusion that was treated with a pericardial window 6 months later.