Clinicopathological features of malignant lymphoma in Japan : Miyagi Study

本表观流行病学研究共纳入了2002年至2008年期间宫城县新诊断的1,552例恶性淋巴瘤病例。滤泡性淋巴瘤的发生率（24%）高于以往亚洲国家的报告，与西方国家相似。对各亚型B细胞淋巴瘤的分析显示，流式细胞术和免疫组化检测均无CD 20表达（4%和4%），流式细胞术和免疫组化检测CD 20表达的差异（6.3%）。

A total of 1,552 cases of newly diagnosed malignant lymphoma in Miyagi prefecture between 2002 and 2008 were enrolled in this epiemiological study. The rate of follicular lymphoma (24%) was higher than that in previous reports from Asian countries, and similar to that in Western countries. The analysis of each subtype of B-cell lymphoma revealed the incidence for lack of CD20 expression by either flow cytometry or immunohistochemistry (4% or 4%) and the discrepancy of CD20 expression between the results of flow-cytometry and immunohistochemistry (6.3%).