Delayed development of a pseudoaneurysm in the left circumflex artery following angioplasty and stent placement, treated with intravascular ultrasound-guided stenting.

Three months following satisfactory angioplasty and stent placement, a patient developed restenosis and a pseudoaneurysm of a coronary artery segment proximal to the previously stented area. The restenosis and the pseudoaneurysm were successfully treated with intravascular ultrasound-guided primary stenting. The delay in the appearance of the pseudoaneurysm attests to the chronic nature of the lesion.