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良性反应淋巴结(低倍镜)


良性反应淋巴结的正常外观。上部是被膜,其下为被膜下淋巴窦,是淋巴的入口,排出周围组织的淋巴到淋巴结。被膜下方是有淋巴滤泡的副皮质区,淋巴滤泡有一苍白色的生发中心。下面是窦状小管延伸到淋巴结的中心。

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Here is the normal appearance of a benign reactive lymph node. At the top is the capsule and just under that a subcapsular sinus where lymphatics enter that drain tissues peripheral to the node. Beneath the capsule is the paracortical zone with lymphoid follicles having a pale germinal center in which the immune responses are often generated. Beneath this are sinusoids extending to the center of the node.


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