Pathology The presence of which of the following features in an atherosclerotic plaque indicates that it has become a complicated lesion? A Cholesterol crystals B Chronic inflammatory cells C Intimal smooth muscle D Lines of Zahn 💡 Explanation The presence of which of the following features in an atherosclerotic plaque indicates that it has become a complicated lesion? ✓ Correct Answer: D. Lines of Zahn