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A histological image (HE stain) (274/18_R9). Detail of the cortical zone with a thin connective tissue capsule (A), a subcapsular sinus (B) with many erythrocytes, a follicle with mantle zone (C) and germinal centre (D), and parafollicular tissue (E) with a dense concentration of erythrocytes. Scale bar = 100 µm.
