We describe the implantation of a stent graft to seal off the left main cor
onary artery aneurysm of a 64-year-old man with guidance by intravascular u
ltrasound. The aneurysm was successfully sealed off. At 6-month and 1-year
follow-up, a small residual aneurysm reappeared, which was treated conserva
tively. The technical issues in closing this aneurysm and the management of
the residual aneurysm are discussed. Cathet. Cardiovasc. Intervent. 51:205
-209, 2000. (C) 2000 Wiley-Liss, Inc.