1. Unstable Angina Caused by Honeycomb-Like Coronary Lesion Identified with Use of Optical Coherence Tomography

    Unstable Angina Caused by Honeycomb-Like Coronary Lesion Identified with Use of Optical Coherence Tomography

    A 67-year-old man had angina and dyspnea for several weeks during exercise and rest, and he came to our hospital for coronary angiography. He had mild ST-segment variability, without necrosis markers. Cardiac ultrasonograms revealed moderate mitral regurgitation, preserved ejection fraction, and a posterior-wall infarction scar despite no history of infarction. Coronary angiograms, which revealed no obvious culprit lesion, showed mild focal stenosis in the proximal right coronary artery, distal chronic occlusion of a small left circumflex coronary artery, and mild stenosis and haziness in the mid left anterior descending coronary artery (LAD) (Fig. 1). Suspecting thrombus in the mid LAD ...

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