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Signet ring-like appearance: specific feature of vulnerable plaques detected by 320-slice multidetector computed tomography

EuroIntervention 2014;9:1248 published online ahead of print May 2013. DOI: 10.4244/EIJV9I10A210

Division of Cardiology, Mitsui Memorial Hospital, Tokyo, Japan
A 59-year-old man presented to the emergency department with sustained chest pain. Emergency coronary angiography (CAG) revealed an occluded right coronary artery (RCA) (Figure 1A). After aspiration, a coronary stent was implanted. Histopathological examination showed that the thrombus contained cholesterol crystals and foam cells (Figure 1B and Figure 1C). He was discharged 11 days later without any complications.

A 320-slice multidetector computed tomography (CT) had been accidentally performed five days prior to plaque rupture. He had been suffering from stable angina with ST depression in leads II, III, and aVF, and without elevation of cardiac enzymes. He preferred non-invasive coronary ...

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