An 82-year-old man developed acute inferior myocardial infarction. Emergent coronary angiography demonstrated thrombotic occlusion in the right coronary artery. Intracoronary thrombolytic therapy was performed with successful recanalization. However, circumferential dissection with luminal stenosis was revealed at the point of thrombus formation. Repeat angiography 6 months later showed resolution of the dissec tion. This is the first description of circumferential spontaneous coronary artery dissec tion. In addition, the present patient is older than any previous patients.
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