目的：探讨人淋巴结窦内出现血液成分的组织病理学特点及其意义。
Purpose to find out the histopathological characteristics and the significances when blood present in the human lymph node sinus.
在腔外PEL的病例中存在一些可能导致误诊的病理特征包括经典型霍奇金淋巴瘤样特征，淋巴结窦受累和T细胞抗原的表达。
Potentially misleading pathologic features in our series of extracavitary PEL included classic Hodgkin lymphoma-like features, lymph node sinus involvement, and T-cell antigen expression.
下面是窦状小管延伸到淋巴结的中心。
Beneath this are sinusoids extending to the center of the node.
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