試題詳解

30. A 65-year-old man presents with stable angina. Coronary angiography shows a fibrofatty plaque with an intact fibrous cap and a small lipid core. Which feature best explains why this lesion is less likely to
cause an acute myocardial infarction than a "vulnerable" plaque?
(A) Large lipid core with intraplaque hemorrhage
(B) High content of foamy macrophages near the shoulder regions
(C) Thick collagen-rich fibrous cap with few inflammatory cells
(D) Marked thinning of the fibrous cap with abundant metalloproteinases