荧光原位杂交技术在淋巴瘤诊断中的价值
Application of interphase fluorescence in situ hybridization in the diagnosis of lymphoma
目的 探讨荧光原位杂交(FISH)检测在淋巴瘤诊断中的价值,为淋巴瘤的准确诊断提供依据.方法 以前瞻性非随机分组模式,采用三组IgH/bcl-2、IgH/CCNDl、API2/MALT1探针,对临床初诊为淋巴瘤的74例活检新鲜样本的瘤细胞进行FISH,检测其相应t(14;18)、t(11;14)及t(11;18)染色体易位,将检测结果与组织病理诊断进行比较评价.结果 74例中8例(10.8%)检测到染色体易位,分别为t(14;18)和t(11;14)各4例.62例组织病理诊断为淋巴瘤者中7例检测到染色体易位,分别为t(14;18)3例(组织病理诊断2例为滤泡性淋巴瘤、1例为结节硬化型霍奇金淋巴瘤);t(11;14)4例(组织病理诊断2例为套细胞淋巴瘤、1例滤泡性淋巴瘤,1例小淋巴细胞淋巴瘤).在组织病理未诊断为淋巴瘤的12例中,仅检测到1例t(14;18),而其组织形态显示为淋巴组织增生活跃,经FISH检测更正诊断为滤泡性淋巴瘤.25例弥漫性大B细胞淋巴瘤未检测到t(14;18).在其他有基因数目异常者56例(75.7%)中恶性病变52例(92.9%),与4例(7.1%)良性病变比较,病变性质与基因数目异常之间差异有统计学意义(P=0.011).结论 FISH技术检测淋巴瘤特异的遗传学异常对于复核组织病理诊断、鉴别其类型、亚型及病变的良、恶性有重要参考价值.
更多Objective To investigate the feasibility of interphase FISH in the routine clinicopathological practice and its values in the differential diagnosis of lymphomas. Methods A total of 74 fresh tissue samples clinically suspicious of lymphoma were investigated by FISH using three probes including IgH/bcl-2, IgH/CCND1 and API2/MALT1, corresponding the translocation t (14 ; 18), t (11 ; 14) and t(11 ;18) respectively. The results of FISH were analyzed and compared with the histopathologic diagnosis. Results Histological evaluation eventually confirmed that there were 62 cases of lymphoma and 12 cases of reactive lymphoid processes. The translocations were detected in 7 cases in 62 cases of lymphoma: 3 demonstrated t (14; 18) including 2 cases of follicular lymphomas and 1 nodular sclerosing Hodgkin lymphoma. Four cases had t (11;14) including mantle cell lymphoma (2 cases), follicular lymphoma (1 case) and small cell lymphoma (1 case). A lymphoid hyperplasia case showed detectable t(14;18). All 25 cases of DLBCL showed no evidence of t(14;18). Amplification or loss of regional genes was seen more often in malignant than in the benign cases. Conclusion Interphase FISH offers useful ancillary technology that plays an important role in differential diagnosis and classification of lymphoma.
More- 浏览:503
- 被引:3
- 下载:188
相似文献
- 中文期刊
- 外文期刊
- 学位论文
- 会议论文