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Objective Comparative evaluation of flow cytometric immunophenotyping in the diagnosis and differentiation of lymphadenopathy,lymphoma and reactive lymphoid hyperplasia. Methods Ninty-nine fine-needle aspiration specimens from patients with tentative clinical lymphoprofierative disorders were consecutively analyzed by both cytology and flow cytometry with histology results as the gold standard. The three color antibodies including CD3,CD3,CD4,CD5,CD10,CD19,CD20,CD23,CD45,K,λ,FMC7 and CD34 were used for cell composition evaluation and cells with abnormal phenotype. Lymphoma cases were classified according to new WHO classification and subtypes were categorized by immunophenotypic analysis. The results from flow cytometry and cytology were compared. Results By cytological study, 40 of 99 cases were diagnosed with lymphoma, 29 cases were diagnosed with metastatic carcinoma, and 30 cases were diagnosed with reactive lymphoid hyperplasia, necrosis or tuberculosis. Among them, 2 non-Hodgkin lymphoma(NHL) cases were misdiagnosed as reactive lymphoid hyperplasia by cytology. Biopsy was performed in 18 cases of NHL including 16 B-NHL and 2 T-NHL By flow cytometry study, 35 of 99 eases were diagnosed with lymphoma, including 4 cases of lymphoblast lymphoma, 1 case of T-cell lymphoma, and 30 eases of other B-NHL For those 30 cases of B-NHL, 28 cases showed monoclonal light chain expression, and k: λ orλ: k atios exceed 3: 1, and B-cell proportion was (73. 2±27. 2)%. Twenty-six cases could be sub-classified by immunophenotyped. Among 16 histologically confirmed B-NHL cases, only 2 cases diagnosed with follicular lymphoma showed discrepancy with flow cytometry results. In all cases diagnosed with reactive lymphoid hyperplasia and metastasis carcinoma , no abnormal lymphocytes can be found, and k: λ or k: λ ratios were less than 3: 1. Conclusions Fine-needle aspiration analysis with flow eytometrie immunophenotyping can be helpful in diagnosis and differential diagnosis as well as sub-classification of NHL 相似文献
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Objective Comparative evaluation of flow cytometric immunophenotyping in the diagnosis and differentiation of lymphadenopathy,lymphoma and reactive lymphoid hyperplasia. Methods Ninty-nine fine-needle aspiration specimens from patients with tentative clinical lymphoprofierative disorders were consecutively analyzed by both cytology and flow cytometry with histology results as the gold standard. The three color antibodies including CD3,CD3,CD4,CD5,CD10,CD19,CD20,CD23,CD45,K,λ,FMC7 and CD34 were used for cell composition evaluation and cells with abnormal phenotype. Lymphoma cases were classified according to new WHO classification and subtypes were categorized by immunophenotypic analysis. The results from flow cytometry and cytology were compared. Results By cytological study, 40 of 99 cases were diagnosed with lymphoma, 29 cases were diagnosed with metastatic carcinoma, and 30 cases were diagnosed with reactive lymphoid hyperplasia, necrosis or tuberculosis. Among them, 2 non-Hodgkin lymphoma(NHL) cases were misdiagnosed as reactive lymphoid hyperplasia by cytology. Biopsy was performed in 18 cases of NHL including 16 B-NHL and 2 T-NHL By flow cytometry study, 35 of 99 eases were diagnosed with lymphoma, including 4 cases of lymphoblast lymphoma, 1 case of T-cell lymphoma, and 30 eases of other B-NHL For those 30 cases of B-NHL, 28 cases showed monoclonal light chain expression, and k: λ orλ: k atios exceed 3: 1, and B-cell proportion was (73. 2±27. 2)%. Twenty-six cases could be sub-classified by immunophenotyped. Among 16 histologically confirmed B-NHL cases, only 2 cases diagnosed with follicular lymphoma showed discrepancy with flow cytometry results. In all cases diagnosed with reactive lymphoid hyperplasia and metastasis carcinoma , no abnormal lymphocytes can be found, and k: λ or k: λ ratios were less than 3: 1. Conclusions Fine-needle aspiration analysis with flow eytometrie immunophenotyping can be helpful in diagnosis and differential diagnosis as well as sub-classification of NHL 相似文献
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摘要:目的 通过研究急性髓系白血病(AML)患者白血病细胞表面趋化因子受体CXCR4的表达情况,探讨CXCR4在AML中表达的意义。方法 收集初诊未治疗的130例AML患者,根据FAB分型标准进行分类,以急性淋巴细胞白血病(ALL)患者和非血液系统疾病患者作为对照,检测3组之间及不同FAB亚型之间CXCR4表达情况,分析CXCR4在白血病尤其是AML中表达的意义。结果 AML实验组和ALL对照组细胞表面CXCR4相对荧光强度明显高于非血液系统疾病对照组,且ALL对照组荧光强度最高(P<0.05)。M3和M4/M5亚型组白血病细胞CXCR4 表达明显高于其他亚组(P<0.05)。结论 CXCR4的高表达可能与白血病的发病、浸润及病情发展有关,可为预防白血病细胞迁移及髓外浸润,提高难治性AML疗效和减少AML复发等方面提供新的思路。 相似文献
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Objective Comparative evaluation of flow cytometric immunophenotyping in the diagnosis and differentiation of lymphadenopathy,lymphoma and reactive lymphoid hyperplasia. Methods Ninty-nine fine-needle aspiration specimens from patients with tentative clinical lymphoprofierative disorders were consecutively analyzed by both cytology and flow cytometry with histology results as the gold standard. The three color antibodies including CD3,CD3,CD4,CD5,CD10,CD19,CD20,CD23,CD45,K,λ,FMC7 and CD34 were used for cell composition evaluation and cells with abnormal phenotype. Lymphoma cases were classified according to new WHO classification and subtypes were categorized by immunophenotypic analysis. The results from flow cytometry and cytology were compared. Results By cytological study, 40 of 99 cases were diagnosed with lymphoma, 29 cases were diagnosed with metastatic carcinoma, and 30 cases were diagnosed with reactive lymphoid hyperplasia, necrosis or tuberculosis. Among them, 2 non-Hodgkin lymphoma(NHL) cases were misdiagnosed as reactive lymphoid hyperplasia by cytology. Biopsy was performed in 18 cases of NHL including 16 B-NHL and 2 T-NHL By flow cytometry study, 35 of 99 eases were diagnosed with lymphoma, including 4 cases of lymphoblast lymphoma, 1 case of T-cell lymphoma, and 30 eases of other B-NHL For those 30 cases of B-NHL, 28 cases showed monoclonal light chain expression, and k: λ orλ: k atios exceed 3: 1, and B-cell proportion was (73. 2±27. 2)%. Twenty-six cases could be sub-classified by immunophenotyped. Among 16 histologically confirmed B-NHL cases, only 2 cases diagnosed with follicular lymphoma showed discrepancy with flow cytometry results. In all cases diagnosed with reactive lymphoid hyperplasia and metastasis carcinoma , no abnormal lymphocytes can be found, and k: λ or k: λ ratios were less than 3: 1. Conclusions Fine-needle aspiration analysis with flow eytometrie immunophenotyping can be helpful in diagnosis and differential diagnosis as well as sub-classification of NHL 相似文献
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患者,女,69岁。因感觉右下腹胀痛、乏力、消瘦、盗汗1个月,到当地医院就诊,血常规检查发现WBC 36.4×109/L,诊断为“急性阑尾炎”,于第2天行“阑尾切除术”,术中阑尾未见明显炎症改变,术后一直抗感染治疗,但其临床症状未缓解,白细胞计数持续在(23.7~35.6)×109/L。术后第10天B超显示肝、脾肿大。骨髓检查后考虑慢性粒细胞白血病(CML)。为明确诊断到我院门诊进一步检查。体格检查:一般情况好,体温36.8℃,全身浅表淋巴结不大,胸骨无压痛,心肺无明显异常,腹软,肝肋缘下4 cm,脾肋缘下13 cm,有明显压痛。血常规:WBC 27.6×109/L,中性分叶核… 相似文献
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目的观察人骨髓间充质干细胞(hBM—MSCs)对低氧环境的适应能力,为其临床应用提供依据。方法体外培养hBM—MSCs,根据培养条件分为四组,常氧正常血清组培养条件为20%O2及10%FBS/HD、常氧无血清组为20%O2及0%FBS/HD,低氧正常血清组为1.5%O2及10%FBS/HD,低氧无血清组为1.5%O2及0%FBS/HD,细胞培养6、12、24、48、72、96h后采用MTT法检测四组增殖状况;流式细胞术检测四组凋亡情况。结果在10%FBS培养下,48h时低氧可显著促进细胞增殖;在整个观察时间内,低氧培养不会促进hBM—MSCs凋亡;同时元血清培养时细胞增殖受抑。结论在正常的血清培养条件下,hBM—MSCs对低氧有较好的耐受性,但是无血清培养不利于hBM—MSCs增殖,hBM-MSCs可作为缺氧相关组织修复的种子细胞。 相似文献