PMC7685837_01
Histology of coronary artery from the patient described in this case report. (a) Low-power magnification of coronary artery demonstrating inflammatory infiltrate, hyalinization, and calcification (marked by arrows in clockwise fashion, respectively) (hemotoxylin and eosin (H&E), 20x). (b) High-power magnification demonstrating a storiform pattern of fibrosis, enclosed within the dashed line (H&E, 100x). (c) High-power magnification demonstrating lymphoplasmacytic nature of inflammation with arrows indicating representative plasma cells and lymphocytes (H&E, 400x).
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fig1
Histologic examination of the coronary arteries revealed extensive infiltration of the intima and media by lymphocytes and plasma cells with obliterative, hyalinized fibrosis and calcification of the lumen (Figure 1). The inflammation and hyalinized fibrotic tissue extended into surrounding expanded adventitia and assumed a storiform pattern (Figure 1(b)).