Delayed development of a giant coronary pseudoaneurysm after stent placement for chronic total occlusion.

A 42-year-old man developed a giant pseudoaneurysm in a stented coronary segment despite excellent results after stent placement for chronic total occlusion. The aneurysm was treated successfully with the deployment of a covered stent. Delayed development of a giant pseudoaneurysm after stent implantation for chronic total occlusion is an uncommon complication.