原发淋巴结套细胞淋巴瘤临床病理分析

目的：探讨原发淋巴结套细胞淋巴瘤（MCL）的临床病理与免疫组化特点。方法：收集6例淋巴结MCL，免疫组化ABC法确定肿瘤细胞特征，使用的抗体有CD45、CD20、CD79、CD45RO、CD30、CD68、TdT、CD43、CD5、cyclinD1、c-myc,IgD,IgM等。结果：光镜可将MCL分为4种亚型：套区型1例，结节型1例，弥漫型2例，母细胞化型2例。肿瘤细胞表达全B细胞标记，IgD CD43 ,cyclinD1(5/6),CD5(4/6) 。结论：MCL是一种具有特殊免疫表型的B细胞淋巴瘤，不同的组织学构型其预后可能不同，临床应与其它类型B细胞淋巴瘤鉴别，如淋巴结边缘区B细胞淋巴瘤（MZL），滤泡性淋巴瘤（FL）及CLL／SLL等鉴别。

Mantle cell lymphoma primarily occured in lymph nodes:A clinicopathologic study

Purpose To study the clinicopathologic and immunohistochemical characteristics of mantle cell lymphomas(MCL). Methods Six cases of MCL in lymph nodes were collected and immunohistochemical stains for CD45,CD20,CD79,CD45RO,CD30,CD68,CD43,CD5,cyclinD1,bcl 2,c myc,IgD and IgM performed. Results According to the histological pattern, MCL could be divided into 4 subtypes, mantle zone type(1 case), nodular type (1 case), diffuse type (2 cases) and blastoid type (2 cases). The tumor cells were pan B+, IgD+, CD43+, cyclinD1 + (5/6),CD5+(4/6). Conclusions MCL is a kind of special immunophenotypic B cell lymphoma. The different histiological subtype may have a different prognosis. The differential diagnosis includes the others B cell lymphomas, for instance, marginal zone B cell lymphomas (MZL),follicular lymphomas(FL), and choronic lymphocytic leukemia/small lymphocytic lymphomas (CLL/SLL).