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Comparison of normal versus GCA affected temporal arteries. Representative H and E images of a normal temporal artery with minimal immune cells (A) and GCA positive temporal arteries (B, C) with granulomatous infiltrates spanning the hyperplastic intima, media and adventitia. Arrow demonstrates fragments of internal elastic lamina. Arrowheads show 2 multinucleated giant cells. Magnification ×200 in (A); ×400 in (B); ×600 in (C).
