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Figure 2 Coronary computed tomography angiogram in a 52-year-old male patient who presented with chest pain. In the long-axis reconstruction (left), a large nonstenotic and noncalcified plaque is visualized in the proximal left anterior descending (LAD) coronary artery, which was the only manifestation of coronary artery disease in this patient. In the cross-sectional image of the LAD (right), the noncalcified plaque can be clearly depicted from the contrast-filled lumen and the surrounding connective tissue. The density measurements within the plaque revealed a predominantly lipid-rich plaque with 28 HU.