非霍奇金淋巴瘤骨髓受累的免疫表型探讨

目的：探讨非霍奇金淋巴瘤（NHL）骨髓受累的免疫表型特点方法：应用流式细胞术对NHL患者的骨髓标本进行检测，收集受累者的CD分子表达数据。结果：1）在46例受检者中，31例阳性，阳性率67.39％，（95％可信区间53．84％，80．94％）经骨髓形态学检查确证为骨髓受累。2）31例阳性者中，B细胞NHL23例，T细胞NHL7例．NK细胞NHL1例B细胞NHL标记抗原出现频率最高的为CD19，CD20；T细胞NHL标记抗原出现频率最高的为CD7。6例B细胞淋巴瘤同时表达T细胞抗原，1例B细胞淋巴瘤还表达髓系抗原标志。结论：1）NHL骨髓受累免疫表型特点为B细胞来源：CD19、CD20；T细胞来源：CD7。2）T、B细胞抗原同时表达不少见．3）可同时表达髓系抗原．     

流式细胞术联合形态学检查对淋巴瘤骨髓累犯的诊断价值

目的 探讨流式细胞术(FCM)联合形态学检查对淋巴瘤骨髓累犯的诊断价值.方法 对52例淋巴瘤患者的骨髓标本行FCM、涂片及活组织病理切片检查,观察骨髓受累率、免疫表型数据和检查前后临床分期(CS)、国际预后指数(IPI)的变化.结果 6例霍奇金淋巴瘤(HL)切片法仅发现1例骨髓受累;46例非霍奇金淋巴瘤(NHL)中,骨髓受累FCM检出3l例,涂片法检出5例,切片法检出12例.FCM发现的3l例受累患者中,21例为早期浸润(瘤细胞＜5%);12例为小细胞淋巴瘤(SLL);6例同时表达T、B细胞抗原,1例弥漫大B细胞性淋巴瘤同时表达髓系抗原CD13、CD33;检查后,19例由原分期Ⅰ、Ⅱ、Ⅲ期升至Ⅳ期,18例进展型NHL的IPI提高.结论FCM联合形态学检查提高了骨髓受累的检出率,并能了解骨髓增生程度,提供免疫表型数据,尤对早期浸润和SLL声重要鉴别价值.准确的骨髓检查提高了患者CS和IPI.     

流式细胞术(CD45/SSC设门法)检测恶性淋巴瘤骨髓受累的临床意义

目的:探讨流式细胞术(CD45/SSC设门法)检测恶性淋巴瘤骨髓受累的临床价值.方法:采用配对计数资料的实验设计,应用流式细胞仪对恶性淋巴瘤患者的骨髓标本进行检测,同时行骨髓涂片检查.结果:对34例恶性淋巴瘤患者的骨髓同时行上述两种方法检测,流式细胞术阳性率67.65%(23/34),95%可信区间(51.92%,83.37%),涂片法阳性率11.76%(4/34),95%可信区间(0.94%,22.58%).经配对计数资料X2检验,差别有统计学意义.结论:流式细胞术是检测恶性淋巴瘤骨髓受累的有效方法,检出率67.65%,优于传统的涂片法.     

112例淋巴系统恶性肿瘤骨髓免疫表型分析

背景与目的:淋巴细胞白血病和淋巴瘤骨髓侵犯的诊断以细胞形态学为基础,而免疫分型可通过获得肿瘤细胞分化和发育阶段的信息使淋巴系统恶性肿瘤的诊断更为准确,为临床合理治疗和预后判断提供重要的科学依据.本研究应用多参数流式细胞术(flow cytometry,FCM)探讨淋巴细胞白血病和非霍奇金淋巴瘤(non-Hodgkin's lymphoma,NHL)骨髓侵犯的免疫表型特点.方法:收集112例病理确诊NHL并伴骨髓侵犯和淋巴细胞白血病患者的骨髓标本.应用FCM检测肿瘤细胞的免疫表型.结果:45例前驱B淋巴母细胞白血病/淋巴瘤(precursor B lymphoblastic lymphoma/leukemia,B-ALL/LBL)主要表达CD19、CD10、TdT、CD34、HLA-DR和CD20;32例前驱T淋巴母细胞白血病/淋巴瘤(precursor T lymphoblastic lymphoma/leukemia,T-ALL/LBL)主要表达胞内CD3(cytoplasmic CD3,CyCD3)、CD7、CD5、TdT、膜表面CD3(surface CD3,sCD3)和HLA-DR.77例前驱淋巴细胞肿瘤中,28例(36%)有髓系抗原CD13、CD33的表达;9例(20%)B-ALL/LBL病例有CD20与CD34共同表达,28例(87.5%)T-ALL/LBL病例有CyCD3与TdT共同表达.成熟淋巴细胞肿瘤35例,其中17例慢性淋巴细胞白血病/小淋巴细胞淋巴瘤主要表达CD19、CD20、CD5和HLA-DR,并有CD19与CD5共同表达.4例弥漫大B细胞性淋巴瘤主要表达CD19、CD20、CD10和HLA-DR.3例伯基特淋巴瘤主要表达CD19、CD10、CD20、SIgM.1例套细胞淋巴瘤表达CD5、CD19、CD20、HLA-DR.5例外周T细胞淋巴瘤(PTCL)主要表达sCD3、CD5、CD7、CD4或CD8.1例间变性大细胞淋巴瘤主要表达sCD3、HLA-DR.4例NK/T细胞肿瘤表达CD56、HLA-DR,也表达CD7或CD4或CD8.成熟淋巴细胞肿瘤不表达早期抗原如CD34、TdT.成熟淋巴细胞肿瘤可伴有髓系抗原CD13、CD33的表达.结论:淋巴系统恶性肿瘤侵犯骨髓采用形态学结合FCM免疫学分型可获得T、B细胞来源、肿瘤细胞分化阶段和异常抗原表达等参数,有助于临床诊断和微小残留病灶的检测.     

流式细胞仪CD45/SSC设门在儿童急性白血病免疫分型中的应用

目的：探讨CD45／SSC设门方法在儿童急性白血病流式细胞仪免疫表型分析中的优越性。方法：采用CD45／SSC设门的方法确定原始细胞群,与异硫氰酸荧光素和藻红标记的系相关抗体联合进行三色白血病免疫表型分析,并与FSC／SSC设门方法进行比较。结果：CD45／SSC设门与FSC／SSC设门比较能将骨髓原始细胞与正常淋巴细胞、单核细胞及粒细胞明显分开,所得原始细胞比例与形态学分类明显相关,免疫表型分析假阳性发生率低。CD45与异氰酸荧光素和藻红蛋白标记的系相关抗体同时标记,能对白血病细胞群进行多参数分析,更好地反应白血病细胞抗原表达特性。结论：采用CD45／SSC设门,能将骨髓中原始细胞与正常的淋巴细胞和单核细胞明显分开,假阳性发生率低,免疫分型结果可靠。     

多参数流式细胞术在淋巴细胞白血病和非霍奇金淋巴瘤骨髓侵犯诊断的应用

背景与目的：骨髓形态学检查可诊断淋巴细胞白血病,结合淋巴结活检可诊断非霍奇金淋巴瘤(non—Hodgkin‘s lymphoma,NHL)侵犯骨髓,但形态学仅是初步的诊断,采用免疫分型而获得肿瘤细胞来源及发育阶段的资料是目前诊治淋巴系统恶性肿瘤所必需的。本研究探讨多参数流式细胞术(flow cytometry,FCM)在淋巴细胞白血病、NHL骨髓侵犯的诊断和免疫分型方面的应用价值。方法：取初治白血病患者骨髓标本11例和NHL患者骨髓侵犯的骨髓标本41例,以及2例分别表现为巨大纵隔肿块和腹部巨大肿块的患者因无法取得病理标本而取骨髓检测的骨髓标本2例。采用B细胞系列抗体、T细胞系列抗体、粒细胞系列抗体,按常规行FCM免疫表型检测,CD45结合两个系列单抗或阶段特异性单抗进行三色免疫荧光染色,CD45／SSC设门后可将骨髓细胞清晰地分出成熟细胞和幼稚细胞群,然后行FSC、SSC、McAb1-FITC、McAb2-PE、CD45-Cychrome五参数分析。结果：11例白血病患者骨髓形态学经FCM的免疫分型获得进一步确诊和分型。41例NHL骨髓侵犯标本免疫表型与其淋巴结病理免疫组化相符合的为80．5％(33／41),不相符的有19．5％(8／41),结合临床、病理、骨髓形态学诊断和骨髓FCM的结果,最终获得明确诊断。2例分别为巨大纵隔肿块和腹块的患者仅靠骨髓形态学和骨髓FCM确诊为T—NHL和B—NHL。结论：多参数FCM能进一步明确白血病和NHL骨髓侵犯的诊断,对急性淋巴细胞白血病和NHL的病例还可同时获得T或B细胞来源和细胞分化早期或后期的参数,有助于临床诊断、鉴别诊断和治疗方案的确定。     

成年人急性白血病63例免疫分型特点及临床意义

 目的：探讨成人急性白血病(AL)三色流式细胞术免疫分型的特点及临床意义。方法：采用CD45/SSC双参数散点图设门方法进行三色流式细胞术对63例成人急性白血病患者进行免疫表型分析。结果：28例急性髓系白血病(AML)主要阳性表达为：CD33 (89.3%)、CD13（75%）、CD34 (60.7%)。42.9%（12/28）的AML患者伴有淋系抗原表达,最常见为CD7(39.3%)。B细胞系急性淋巴细胞白血病(ALL)22例(62.9%),主要阳性表达为：CD19(100.00%),CD10(77.3%) ,CD22(81.8%);T细胞系ALL13例(37.1%),主要表达CD7(92.3%), CD5(84.6%)。28.6%（10/35）的ALL表达髓系相关抗原,主要是CD13(17.1%) ,CD33(11.4%)。结论：流式细胞仪三色荧光标记法进行AL免疫分型,对白血病的准确诊断和分型有重要的指导意义。     

骨髓细胞学检查对恶性淋巴瘤病理诊断、临床分期及预后价值

[目的]探讨骨髓细胞学检查对恶性淋巴瘤病理诊断和临床分期的价值.[方法]总结回顾101例恶性淋巴瘤患者的骨髓细胞学检查和临床分期结果.[结果]霍奇金淋巴瘤(HL)24例;非霍奇金淋巴瘤(NHL)77例.NHL分型:B细胞型49例,T细胞型26例和NK细胞型2例.恶性淋巴瘤的骨髓侵犯(BMI)32例(31.68%),其中恶性淋巴瘤性白血病(MLL)8例.HL的淋巴细胞削减型和混合细胞型;NHL的小淋巴细胞淋巴瘤,前B淋巴母细胞淋巴瘤和T淋巴母细胞淋巴瘤BMI多见.10例无明显浅表淋巴结肿大的NHL患者经骨髓活检确诊为BMI,分期则由原Ⅱ、Ⅲ期升为Ⅳ期.恶性淋巴瘤发展至MLL的间期＜3.5年,生存期＜28个月,预后不良.[结论]骨髓细胞学检查对恶性淋巴瘤的诊断和临床分期有重要价值,尤其对无淋巴结病理证据的患者可提供诊断依据,伴有BMI患者为临床晚期,可能进展为白血病.     

外周血异常与非霍奇金淋巴瘤临床关系探讨

 目的 探讨非霍奇金淋巴瘤（NHL）外周血异常的临床意义。方法 52例患者外周血、血涂片及骨髓检查,血液学参数用统计学处理。结果 NHL初诊患者贫血、白细胞数目异常、血小板数目异常、二系以上改变、外周血发现淋巴瘤细胞及骨髓受累分别为48.1 %,40.4 %,23.1 %,13.5 %,11.5 %及26.9 %,且血液学异常程度与NHL恶性程度及预后相一致。结论　NHL血液学异常改变为首诊及预后判断提供了依据。     

不同部位和类型恶性淋巴瘤与EBV感染相关性研究

目的：对不同部位和类型的恶性淋巴瘤中EB病毒（Epstein-Barr virus，EBV）的感染情况进行检测和分析，探讨EBV感染可能与恶性淋巴瘤的病因关系。方法：收集恶性淋巴瘤组织标本127例，其中鼻腔及鼻咽淋巴瘤60例，胃淋巴瘤30例，表浅淋巴结淋巴瘤37例。组织病理学诊断为非霍奇金淋巴瘤（NHL）108例，霍奇金淋巴瘤（HD）19例。采用原位分子杂交方法检测淋巴瘤组织中EBV编码的小RNA（EBER），确定EBV在恶性淋巴瘤细胞中的存在。结果：108例NHL（包括鼻腔及鼻咽、胃、表浅淋巴结部位），EBER检测46例阳性，阳性率为42.6%。鼻腔/鼻咽NHL的EBER阳性率为58.3%（35/60），其中NK/T细胞淋巴瘤29例，EBER阳性19例，阳性率为65.5%（19/29）；B细胞淋巴瘤31例，EBER阳性16例，阳性率为51.6%（16/31）。胃部NHL的EBER阳性率为30.0%（9/30），其中B细胞淋巴瘤28例，EBER阳性9例，阳性率为32.1%（9/28）；T细胞淋巴瘤2例，均为EBER阴性。表浅淋巴结NHL18例，EBER阳性2例，阳性率为11.1%（2/18）；表浅淋巴结HD19例，EBER阳性5例，阳性率为26.3%（5/19）。结论：本组资料非霍奇金淋巴瘤EBV感染阳性率（42.6%）略高于霍奇金淋巴瘤EBV感染阳性率（26.3%），差异无显著性意义（P〉0.05）。鼻腔及鼻咽NHL的EBV感染阳性率（58.3%）高于胃NHL（30.0%）和表浅淋巴结NHL（11.1%）（P〈0.05）。研究提示各类型淋巴瘤与EBV感染均有密切关系，且存在部位依赖性。     

Clinicopathological studies on bone marrow involvement of non-Hodgkin's lymphoma

OBJECTIVE: To investigate the relationship between pathomorphological features and clinical manifestations of non-Hodgkin's lymphoma (NHL) with bone marrow involvement (BMI). METHODS: Plastic-embedded section of bone marrow biopsy was stained with H-Giemsa-E. Immunotyping of NHL was performed immunohistochemically. RESULTS: A total of 70 patients with NHLBMI(male: 52, female: 18; median age: 49 years) was studied. There were 20 patients with T cell-lymphoma and 50 patients with B cell-lymphoma. The extent of bone marrow involvement was minimal in 15 cases, moderate in 16 cases and severe in 39 cases. Bone marrow involvement was of interstitial type in 23 cases, nodular type in 7 cases, and mixed type in 18 cases and diffuse type in 22 cases. The frequency of splenomegaly in nodular type NHLBMI was significantly higher than that in any other type. Nodular type NHLBMI occurred mainly in B cell-lymphoma. Lymphoma cell leukemia (LCL) developed in 14 of 39 (35.9%) cases of NHL with severe bone marrow involvement which was significantly more frequent than that in NHL with mild and moderate bone marrow involvement. CONCLUSION: Difference in the extent and pattern of bone marrow involvement in NHL is related to clinical manifestations. Bone marrow biopsy helps evaluate response to treatment.     

Bone marrow involvement by non-Hodgkin's lymphoma: the clinical significance of morphologic discordance between the lymph node and bone marrow. Nebraska Lymphoma Study Group.

Bone marrow specimens from 317 patients with non-Hodgkin's lymphoma (NHL) obtained at initial staging were evaluated for the presence of lymphoma or benign lymphoid aggregates. Thirty-two percent (102 patients) had lymphoma in their bone marrow, and 9% had benign lymphoid aggregates. Bone marrow lymphoma was present in 39% of low-grade, 36% of intermediate-grade, and 18% of high-grade lymphomas. The bone marrow was involved in 25% of patients with diffuse large-cell or immunoblastic NHL (ie, diffuse histiocytic lymphoma of Rappaport). Bone marrow involvement did not affect survival of patients with low-grade NHL, but survival was significantly shorter (P = .03) for patients with intermediate- and high-grade NHL with bone marrow involvement. Bone marrow involvement was equally common in B-cell and T-cell NHL (31% v 32%). However, patients with T-cell NHL and bone marrow involvement had shorter survival than B-cell NHL with marrow involvement (P = .02) or T-cell NHL without marrow involvement (P = .05). A high incidence of morphologic discordance between lymph node and bone marrow was observed (ie, 40%), always with a more aggressive subtype in the lymph node than in the bone marrow. Presence of large-cell lymphoma in the bone marrow predicted for short survival. Survival for patients with small-cell lymphoma in their bone marrow did not differ significantly from patients with negative bone marrows. We conclude that bone marrow involvement in large-cell NHL, especially in those of T-cell origin, portends a poor prognosis. However, the subgroup of patients with an aggressive histologic subtype of NHL in a lymph node biopsy and small-cell NHL in the bone marrow do not have a poorer outlook than those without bone marrow involvement.     

Exploring the role of FDG-PET in the assessment of bone marrow involvement in lymphoma patients as interpreted by qualitative and semiquantitative disease metabolic activity parameter

Bone marrow biopsy (BMB) is currently the standard method to evaluate marrow involvement in malignant lymphomas. However, there exist a number of pitfalls in this technique that can have important implications for initial staging, prognostification, and treatment of the disease. The present study was undertaken to investigate the utility of FDG-PET imaging in the detection of bone marrow involvement in untreated lymphoma patients. Forty untreated patients (36 males and 12 females) with either Hodgkin's disease (HD) (n = 17) or non-Hodgkin's lymphoma (NHL) (n = 31) underwent whole body FDG-PET study for disease evaluation. Bone marrow uptake of FDG was graded as absence or presence of disease activity at marrow sites by qualitative assessment. Semiquantitative analysis involved deriving disease metabolic index (DMI) using the following formula: DMI = SUV max of suitable circular ROI over PSIS or trochanteric region/ SUVmax of similar ROI over adjoining background. Findings of BMB and FDG-PET were compared for final analysis. Eleven out of 17 HD patients (12 males and 5 females) demonstrated concordance between FDG PET findings and BMB reports. Remaining 6 cases showed discordance of FDG-PET demonstrating presence of marrow involvement at marrow sites and uninvolved marrow on BMB. Twenty six of the 31 NHL cases (24 males and 7 females) demonstrated concordance between FDG PET findings and BMB reports. Remaining 5 cases showed discordance of FDG-PET demonstrating presence of marrow involvement at marrow sites and uninvolved marrow on BMB. All the BMB positive patients (2 of HD and 5 of NHL) demonstrated disease activity in bone marrow on FDG-PET study. All patients with absence of disease activity at marrow sites on FDG-PET scan (9 of HD and 21 of NHL) had histology proven uninvolved marrow. The quantitative assessment by DMI showed a mean of > 2.5 in HD and NHL patients at the PSIS region and the trochanteric region bilaterally in cases of bone marrow involvement by the disease. FDG-PET is a useful adjuvant to BMB for the evaluation of bone marrow involvement in lymphoma patients. The disease metabolic index of > 2.5 at the marrow sites can serve as a semiquantitative parameter for such diagnosis on FDG-PET in untreated patients of lymphoma.     

Comparative multi-color flow cytometric analysis of cell surface antigens in bone marrow hematopoietic progenitors between refractory anemia and aplastic anemia

Refractory anemia (RA) in myelodysplastic syndrome (MDS) without prominent dysplasia closely resemble the mild type of aplastic anemia (AA) in their hematological features. This sometimes makes it difficult to distinguish clearly between the two diseases. Using the multi-color flow cytometric technique, we compared cell surface antigen expression patterns on bone marrow hematopoietic progenitor cells which were isolated as a CD34 positive- CD45 dull positive with low side scatter intensity (CD34(+)CD45(dull+)SSC(low)) population in flow cytogram between RA (n=12) and AA (n=11). The antigens analyzed in CD34(+)CD45(dull+)SSC(low) mononuclear cells were: CD38 and CD71 for cell growth-related antigens, CD 33 and CD13 for myeloid and monocytoid lineage-associated antigens, CD7 and CD19 for lymphoid lineage, and CD14 for a monocytic lineage specific antigen. The percentages of CD34(+)CD45(dull+)SSC(low) cells in bone marrow non-erythroid mononuclear cells, and the expression frequencies of CD38, CD71, CD33 and CD13 antigens in CD34(+)CD45(dull+)SSC(low) progenitors were all significantly decreased in AA compared to normal bone marrows (n=7) (P<0.005). In contrast, in RA bone marrows the percentages of CD34(+)CD45(dull+)SSC(low) cells showed wide distribution and the cell surface antigen expression patterns varied among each case: some cases showed low frequencies of CD38 and CD71 expression as well as AA, whereas the others showed high expression frequency of specific antigen(s) which may reflect the clonal expansion of an abnormal clone in bone marrow. An MDS patient who had progressed from RA to RAEB showed further projecting pattern of expression of CD38 and CD33 in CD34(+)CD45(dull+)SSC(low) population in accordance with the disease progression. These data suggest that analysis of cell surface antigen expression patterns of CD34(+)CD45(dull+)SSC(low) progenitor cells by multi-color flow cytometry appears to be a useful method for qualitative and quantitative assessment of marrow progenitor states in AA and RA, therefore this method could be helpful for early detection of clonal evolution in MDS.     

非霍奇金淋巴瘤免疫分型与骨髓细胞形态学的相关性研究

目的:探讨非霍奇金淋巴瘤免疫分型与骨髓细胞形态学的相关性。方法:选择2015年3月至2017年3月我院收治的NHL骨髓侵犯患者63例,进行骨髓涂片细胞形态学检测与流式细胞（FCM）免疫分型检测,分析两种检测之间的联系。结果:按照骨髓细胞形态学分型结果,63例NHL骨髓侵犯患者其中小细胞成熟细胞型40例（63.49%）、大细胞原始型患者6例（9.52%）、大细胞幼稚型10例（15.87%）以及组织细胞型7例（11.11%）。FCM检测根据骨髓瘤细胞特异性抗原表达情况,诊断为B细胞淋巴瘤患者48例（76.19%）、T细胞淋巴瘤患者10例（15.87%）、NK细胞淋巴瘤患者4例（6.35%）以及间变性大细胞淋巴瘤患者1例（1.59%）。FCM诊断48例B细胞淋巴瘤患者中,小细胞成熟细胞型37例（77.08%）、大细胞原始型4例（8.33%）、大细胞幼稚型5例（10.42%）、组织细胞型2例（4.17%）;10例T细胞淋巴瘤患者中,小细胞成熟细胞型3例（30.00%）、大细胞原始型2例（20.00%）、大细胞幼稚型1例（10.00%）、组织细胞型4例（40.00%）;4例NK细胞淋巴瘤患者中,均为大细胞幼稚型（100.00%）;1例间变性大细胞淋巴瘤患者为组织细胞型（100.00%）。结论:非霍奇金淋巴瘤免疫分型与骨髓细胞形态学之间具有着一定的联系,二者联合运用,可提高临床诊断准确性并为临床提供相应的病理分型意见,值得临床推广。     

133 例恶性淋巴瘤骨髓细胞学分析

目的:探讨恶性淋巴瘤骨髓浸润的临床特点。方法:回顾性分析133 例经病理确诊的恶性淋巴瘤病例,分析其骨髓浸润情况。结果:133 例恶性淋巴瘤患者中骨髓受累率为21.8%（29/133）;在骨髓受累的病例中,淋巴肉瘤性白血病、骨髓侵犯、淋巴瘤细胞比例未达5% 的病例分别占31.0%（9/29）、55.2%（16/29）和13.8%（4/29）。 在29例骨髓受累病例中,B 细胞淋巴瘤占55.2%（16/29）,T/NK细胞淋巴瘤占41.4%（12/29）,霍奇金病占3.4%（1/29）。 T/NK细胞淋巴瘤的骨髓受累率为37.5%（12/32）,比B 细胞淋巴瘤要高18.2%（16/88）,两组具有统计学差异。结论:恶性淋巴瘤骨髓浸润比例高,不同的病理学类型骨髓受累的风险不一,总体而言T 细胞淋巴瘤的骨髓浸润率更高,而且以淋巴肉瘤性白血病多见,骨髓细胞学检查对恶性淋巴瘤的正确分期、治疗方案的选择和预后判断有重要的意义。      

非霍奇金淋巴瘤患者血清CA125和VEGF水平与骨髓浸润的相关性研究

 目的　评价CA125和血管内皮生长因子（VEGF）作为预测非霍奇金淋巴瘤（NHL）患者骨髓浸润的血清学指标的价值。方法　97例经病理确诊的初治NHL患者,其中50例经骨髓活检或骨穿检查证实有骨髓浸润,46例骨髓正常者作为对照组。采用ELISA方法分别于化疗前检测血清CA125和VEGF水平。结果　97例NHL患者中,骨髓浸润者占51.5 %（50例）,骨髓正常者占45.5 %（47例）。有骨髓浸润组其血清CA125和VEGF水平明显高于无骨髓浸润组（P＜0.05）。VEGF水平与骨髓中肿瘤细胞所占百分比呈正相关（r＝0.498,P＝0.01）,CA125水平与其无明显相关。结论　NHL骨髓浸润者血清CA125和VEGF明显升高,而且VEGF水平与骨髓浸润程度呈正相关。     

非霍奇金淋巴瘤侵犯骨髓的病理形态及免疫表型特点分析

目的:探讨非霍奇金淋巴瘤(NHL)侵犯骨髓的病理形态、免疫表型特点.方法:对骨髓活检标本,石蜡包埋切片,HE染色,光镜观察形态免疫组化进行表型分析.结果:65例中,B细胞淋巴瘤39例,T细胞淋巴瘤26例.形态学上,B细胞淋巴瘤多以混合型、弥漫型侵犯为主,外周T细胞淋巴瘤(PTCL)以间质型、混合型侵犯多见,伴有浆细胞、嗜酸细胞等反应性成分.毛细胞白血病(HCL)呈蜂窝样外观,具有诊断特异性.26例有髓外原发淋巴瘤者,瘤细胞形态与相应骨髓活检形态一致.免疫组化可对大部分淋巴瘤分型.6例小B细胞淋巴瘤不能分型的,2例结合脾脏病理特点确诊,4例仅有骨髓活检标本的,有待进一步检查确定.结论:多数NHL骨髓侵犯具有明确的形态学及免疫表型特点,可以诊断并分型.少数需结合原发部位及其它检查确诊.