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Stent restenosis with anomalous origin of the coronary artery.

A 71-year-old man with anomalous origin of the left circumflex coronary artery (LCX) was admitted to our hospital because of angina pectoris and a sirolimus-eluting stent (SES) was implanted in the LCX. Six months later, he suffered from recurrence of chest discomfort. Sixty-four slice multidetector computed tomography (MDCT) demonstrated that LCX originated from the right coronary sinus and ran between the ascending aorta and left atrium (LA). In-stent restenosis and stent fracture were suspected on MDCT image. Coronary angiography revealed restenosis. Intravascular ultrasound demonstrated partial stent-strut discontinuity suggestive of stent fracture at the stenotic lesion site. SES frac-