弥漫性大B细胞淋巴瘤分型研究进展

弥漫性大B细胞淋巴瘤(DLBCL)是一组B淋巴细胞来源最常见的、且具有异质性的非霍奇金淋巴瘤。本文就DLBCL的最新分型研究进行阐述。     

肠道弥漫性大B细胞淋巴瘤患者的临床病理特征分析

目的:探讨肠道弥漫性大B细胞淋巴瘤(DLBCL)的临床病理特征.方法:回顾性分析2007年1月至2014年10月在山东第一医科大学附属济南人民医院确诊的136例DLBCL患者的临床特点、病理形态、免疫表型及EBER原位杂交等资料.共获取136例肿瘤样本,根据肿瘤部位分为十二指肠23例,回盲部63例,其他小肠29例,直肠...     

输尿管弥漫性大B细胞淋巴瘤1例

患者男性，58岁。因双侧腰部不适在外院以左肾纤维化、左肾固缩行左肾切除术。术后1个多月出现全身浮肿，于当地医院行右输尿管双“J”管引流术，术后恢复良好，予以拔管，但拔管后半天即出现腹部胀痛、无尿。输尿管镜检查发现“右输尿管息肉”而再次入院，病程中未出现血尿。查体：急性痛苦病容，全身浅表淋巴结无肿大，胸骨无压痛，肝、脾肋下未及，双肾区无隆起，肾未扪及，输尿管无压痛，肾区无叩痛。     

GELTAMO-IPI对弥漫性大B细胞淋巴瘤患者的预后价值

目的:评价GELTAMO-IPI对弥漫性大B细胞淋巴瘤(DLBCL)患者的预后价值.方法:回顾性分析2011年9月至2016年3月山西省肿瘤医院收治的238例初治DLBCL患者临床资料,按GELTAMO-IPI对患者进行危险分层和预后评估.采用Kaplan-Meier法分析两组的无进展生存期(PFS)和总生存期(OS)...     

滤泡性淋巴瘤转变为弥漫性大B细胞淋巴瘤1例

<正>患者女性,38岁。左颈部、双侧腹股沟淋巴结肿大1个月,超声检查最大3cm×2.5cm×2cm,最小1.5cm×1cm×0.5cm。在当地医院切除右侧腹股沟淋巴结活检,复查诊断为滤泡性淋巴瘤(滤泡型,2级)。采用COP方案化疗4个疗程后,淋巴结缩小出院。同年因左颈部、双侧腹股沟及双侧腋     

皮肌炎伴弥漫性大B细胞淋巴瘤一例

皮肌炎是一种自身免疫性疾病,可累及全身多个器官,并且可伴发恶性肿瘤。弥漫性大B细胞淋巴瘤(DLBCL)是非霍奇金淋巴瘤中最常见的一种类型,其临床表现和病理类型复杂多样,其中40%的患者可有结外表现。皮肌炎伴发DLBCL的报道少见,该例可为临床诊治提供更多思路。     

3种方案治疗弥漫性大B细胞淋巴瘤疗效观察

目的:比较CHOP、CHOEP和RCHOP 3种化疗方案治疗弥漫性大B细胞淋巴瘤的疗效。方法:初治弥漫性大B细胞淋巴瘤患者25例依据化疗方案分为CHOP组7例、CHOEP组8例、RCHOP 10例,比较3组患者3年和5年生存率。结果:CHOEP组、RCHOP组3年及5年生存率均优于CHOP组(P<0.05);RCHOP组与CHOEP组3年及5年生存率比较差异无统计学意义(P>0.05)。结论:CHOEP和RCHOP方案治疗弥漫性大B细胞淋巴瘤其疗效优于CHOP方案。     

前尿道原发性弥漫性大B细胞淋巴瘤1例

患者男性,44岁.因无明显诱因出现尿频、尿线变细、排尿困难伴恶心4月余而入院行膀胱尿道镜检查,查体全身浅表淋巴结未触及.既往有前列腺增生及慢性膀胱炎病史.取F24膀胱尿道镜直视下进入尿道,可见尿道黏膜水肿,充血明显,部分有糜烂、坏死并出血,尿道变窄,考虑尿道急性炎症,取组织送检.     

弥漫性大B细胞淋巴瘤的临床病理研究进展

弥漫性大B细胞淋N（diffuselargeBcelllymphoma,DLBCL）是最常见的淋巴造血系统肿瘤。由于DLBCL表现出明显的异质性,所以对于它确切的分子机制还不是十分清楚。本文将对DLBCL的临床病理特点进行综述。     

肾上腺弥漫性大B细胞淋巴瘤声像图特点分析

目的探讨肾上腺弥漫性大B细胞淋巴瘤(ADBCL)的超声声像图特点。方法回顾性分析经病理证实的18例ADBCL患者的超声表现及临床资料,总结其声像图特点,并与增强CT结果对照。结果本组18例ADBCL患者中,单侧4例,双侧14例,共32个病灶。肿块最大直径3.7~13.8 cm,平均7.9 cm。所有病灶均表现为低回声实质性肿块,81.3%(26/32)肿块形态不规则、呈典型的分叶状;87.5%(28/32)肿块内部回声均匀;75%(24/32)肿块边界清晰,部分有包膜;所有病灶彩色多普勒检查均未见明显血流信号。增强CT肿块显示为软组织密度影,内未见明显强化或轻度强化。结论 ADBCL具有特征性的声像图表现,超声检查对其诊断有重要价值。     

胃肠道原发性弥漫性大B细胞淋巴瘤的分型研究

目的探讨胃肠道原发性弥漫性大B细胞淋巴瘤（DLBCL）的分型及与临床病理的关系。方法采用EnVision免疫组化法标记28例胃肠道原发性弥漫性大B细胞淋巴瘤中MUM1、bcl-6、CD10、bcl-2、Ki-67的表达。结果28例胃肠道原发性弥漫性大B细胞淋巴瘤中,12例为生发中心细胞样型（GCB）,16例为非生发中心细胞样型（非GCB）。非GCB型的增殖活性与GCB型相似;GCB型和非GCB型中bcl-2表达的阳性率分别为33.3%（4/12）和56.2%（9/16）。结论胃肠道原发性弥漫性大B细胞淋巴瘤以非GCB型多见,预后较差。     

原发中枢神经系统的弥漫大B细胞淋巴瘤病理学诊断特征

目的探讨原发中枢神经系统的弥漫大B细胞淋巴瘤的病理学诊断特征。 方法回顾性分析2010年1月至2015年12月经泰安市中心医院病理科确诊的15例原发中枢神经系统的弥漫大B细胞淋巴瘤患者的临床资料,总结原发中枢神经系统的弥漫大B细胞淋巴瘤的病理形态学特点及免疫表型。 结果患者男性10例,女性5例,年龄52～64岁;15例患者临床表现为头痛头晕,反应迟钝或行走不稳。CT检查均发现颅内占位,4例发生了转移,分别转移到睾丸、肝脏、肺脏和乳腺,其余患者正电子发射计算机断层显像(PET-CT)检查均未见全身其他部位肿瘤。光镜下肿瘤细胞表现为弥漫性生长,特征性的分布于血管周隙;肿瘤细胞大多相似于中心母细胞,与反应性小淋巴细胞、巨噬细胞、活化的小胶质细胞以及反应性星形细胞混杂。免疫组织化学染色显示肿瘤细胞均弥漫强表达白细胞分化抗原20(CD20)及B细胞系特异性激活蛋白(PAX5),其中3例表达白细胞分化抗原10(CD10),7例均表达B细胞淋巴瘤因子6(Bcl-6)及多发性骨髓瘤致癌蛋白(MUM1),余5例均表达MUM1,增殖细胞核抗原(Ki-67)指数70%～90%。 结论原发中枢神经系统的弥漫大B细胞淋巴瘤是一种相对少见的淋巴瘤,以弥漫性分布于血管周隙的中心母细胞样细胞为特征;临床表现与其发生部位有关,掌握其共同的特征并结合免疫组织化学技术方能正确诊断。     

c-FLIP does not correlate with response to immunochemotherapy treatment and outcome of patients with nodal diffuse large B-cell lymphoma

Cellular FLICE-inhibitory protein (c-FLIP) is a critical anti-apoptotic regulator that inhibits apoptosis-inducing ligand, (TRAIL)-induced apoptosis as well as chemotherapy-triggered apoptosis in malignant cells. The present study was designed to investigate the clinical and prognostic significance of c-FLIP expression in patients with nodal diffuse large B-cell lymphoma (DLBCL) treated with immunochemotherapy.     

Pegfilgrastim as hematopoietic support for dose-dense chemoimmunotherapy with R-CHOP-14 as first-line therapy in elderly patients with diffuse large B cell lymphoma

Goals of work Recently, 6 cycles of R-CHOP-14 have been recommended as the reference standard regimen for the treatment of elderly patients with diffuse large B-cell lymphoma (DLBCL). Pegfilgrastim has been shown to facilitate dose-dense chemotherapy schedules with a single administration per chemotherapy cycle. The aims of this study were to evaluate the use of pegfilgrastim in combination with the R-CHOP-14 regimen in a homogenous group of previously untreated elderly patients with DLBCL and to assess the pharmacokinetics of pegfilgrastim within this patient population. Materials and methods Ten patients with DLBCL between 60 and 80 years of age received a single subcutaneous injection of 6 mg pegfilgrastim 24 h after administration of R-CHOP chemoimmunotherapy, which was repeated for 6 to 8 cycles in two-weekly intervals. A total of 348 blood samples were collected. Pegfilgrastim plasma levels and absolute neutrophil counts were measured every other day during the first treatment cycle and twice weekly during all consecutive cycles. Main results Sixty-three of 72 cycles (87.5%) could be delivered on time and at the planned dose. Median absolute neutrophil nadir was 0.32 g/l on day 9. Grade 3/4 granulocytopenia occurred in all patients. Febrile neutropenia occurred in two patients. Plasma levels of pegfilgrastim remained elevated during the neutropenic phase. At the start of hematologic recovery, plasma concentrations of pegfilgrastim decreased rapidly to baseline levels. Median pegfilgrastim trough plasma level was 0.43 ng/ml on the day preceding the next application. Conclusions A single fixed dose of 6 mg of pegfilgrastim given once per cycle of R-CHOP-14 is effective in supporting neutrophil recovery to allow two-weekly drug administration in previously untreated elderly patients with DLBCL. However, close monitoring for infectious complications is mandatory in this patient population.     

免疫化疗对弥漫性大B细胞淋巴瘤患者预后评价因子的影响

目前联合利妥昔单克隆抗体的免疫化疗已成为弥漫性大B细胞淋巴瘤(DLBCL)的一线治疗方案。本研究借助当前免疫化疗状况对过去国际预后指数(IPI)及目前报道的几种不同免疫学亚型的预后指导价值进行评估分析。采用回顾性分析方法,分别收集接受免疫化疗的病例(R-CHOP组,51例)和常规化疗的病例(CHOP组,75例)的临床资料,并通过免疫组织化学方法,按目前报道的常用分型方法将两组患者分成不同的免疫学亚型,并探讨两组间不同临床因素、IPI分组及不同免疫学亚型分型对治疗反应率和预后的提示作用。结果表明,CHOP组75例。R-CHOP组的治疗完全反应率(68.6%)明显高于CHOP组(58.7%),年龄因素和IPI风险评分在两组中都有提示预后的作用。Han模型及Muris模型区分不同的免疫学亚型,结果在CHOP组有一定的治疗反应率和预后提示作用,而在R-CHOP组,不同的免疫学亚型间没有明显的治疗反应率和预后差异。结论:IPI评分在免疫化疗中仍具有重要的预后评价作用,但利妥昔单克隆抗体的应用可能会使基因学差异导致的预后影响减弱甚至消失。免疫化疗的应用提高了DLBCL的治疗反应率及生存率。     

弥漫大B细胞淋巴瘤治疗进展

非霍奇金淋巴瘤(non-Hodgkin lymphoma NHL)是恶性淋巴瘤的一大类型,在中国所占比例明显高于霍奇金淋巴瘤.弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)是非霍奇金淋巴瘤中最为常见的一种类型,在临床、免疫表型及分子遗传学等方面具有高度异质性,其治疗方案也呈多样化.近10年来,DLBCL的诊断及治疗取得了重要进展,现就其规范化治疗方案及最新治疗研究进行阐述.     

原发性皮肤弥漫性大B细胞性淋巴瘤(腿型)17例临床病理分析

目的探讨原发性皮肤弥漫性大B细胞性淋巴瘤(腿型)(PCDLBCLLT)的临床病理特点。方法回顾性分析17例PCDLBCLLT的临床资料、组织学形态和免疫组化标记。结果 17例PCDLBCLLT的发病年龄为31～86岁,平均64.4岁;其中男性9例,女性8例,男女之比为1.1∶1;主要发生于腿部和躯干部。组织学表现为弥漫分布的肿瘤细胞,以中心母细胞和免疫母细胞为主,核分裂象易见,肿瘤组织不累及表皮。免疫组化:肿瘤细胞表达B细胞相关抗原,bcl-2、MUM1、FOX-P1和bcl-6(+),Ki-67增殖指数为60%～90%。结论 PCDLBCLLT是一种独特类型的大B细胞性淋巴瘤,预后较差。     

Chidamide and sintilimab combination in diffuse large B-cell lymphoma progressing after chimeric antigen receptor T therapy

BACKGROUNDDiffuse large B-cell lymphoma (DLBCL) is curable with first-line chemoimmunotherapy but patients with relapsed/refractory (R/R) DLBCL still face a poor prognosis. For patients with R/R DLBCL, the complete response rate to traditional next-line therapy is only 7% and the median overall survival is 6.3 mo. Recently, CD19-targeting chimeric antigen receptor T cells (CAR-T) have shown promise in clinical trials. However, approximately 50% of patients treated with CAR-T cells ultimately progress and few salvage therapies are effective. CASE SUMMARYHere, we report on 7 patients with R/R DLBCL whose disease progressed after CAR-T infusion. They received a PD-1 inhibitor (sintilimab) and a histone deacetylase inhibitor (chidamide). Five of the 7 patients tolerated the treatment without any serious adverse events. Two patients discontinued the treatment due to lung infection and rash. At the 20-mo follow-up, the median overall survival of these 7 patients was 6 mo. Of note, there were 2 complete response rates (CRs) and 2 partial response rates (PRs) during this novel therapy, with an overall response rate (ORR) of 57.1%, and one patient had a durable CR that lasted at least 20 mo. CONCLUSIONIn conclusion, chidamide combined with sintilimab may be a choice for DLBCL patients progressing after CD19-targeting CAR-T therapy.