早期原发鼻腔NK/T细胞淋巴瘤局部扩大野IMRT前瞻性Ⅱ期研究的初步结果

目的 探讨早期原发鼻腔NK/T细胞淋巴瘤局部扩大野IMRT靶区勾画方案的适用性。方法 对2011—2013年间 21例Ⅰ_{E—ⅡE期鼻腔NK/T细胞淋巴瘤患者进行短疗程化疗联合放疗,其中化疗主要为Gelox方案,放疗均采用局部扩大野IMRT及统一放疗剂量(GTV54.6 Gy分26次,高危CTV50.7 Gy分26次,低危CTV45.5 Gy分26次)。分析其剂量分布、近期疗效和不良反应。结果 2年样本数 12例。随访率100%。2年LRC率为100%、OS为90.5%、PFS为90.5%。PTV54.6 Gy、PTV50.7 Gy和PTV45.5 Gy中90%处方剂量覆盖靶区体积百分比中位数分别为99.8%、99.6%和99.7%,患者均未出现3、4级不良反应。}     

早期鼻腔和韦氏环NK/T细胞淋巴瘤调强放疗的初步结果

目的 回顾性分析早期鼻腔和韦氏环NK/T细胞淋巴瘤调强放疗(IMRT)的初步临床结果.方法 48例患者中42例为原发鼻腔NK/T细胞淋巴瘤,6例为韦氏环NK/T细胞淋巴瘤.根据Ann Arbor分期,I_E期37例,Ⅱ_E期11例.22例接受单纯放疗,26例接受放化疗.95%计划靶体积(PTV)处方剂量为50 Gy.放疗副反应分级采用RTOG标准.局部控制率和生存率用Kaplan-Meier法计算.结果 中佗随访18个月,2年局部控制率、无进展生存率和总生存率分别为100%、73%和75%.剂量体积直方图显示PTV最高、平均、最低剂量均值分别为62.6、55.0、20.3 Gy,接受低于95%处方剂量的体积仅占靶体积的2.4%.脑干、脊髓、视交叉、左视神经、右视神经、左晶体和右晶体接受的最高剂量均值分别为43.5、32.7、48.2、50.3、51.3、7.8和7.6 Gy.左腮腺、右腮腺、垂体、左颞颌关节和右颞颌关节接受的平均剂量分别为17.1、16.5、32.5、47.3和46.8 Gy.全组口腔黏膜反应1级37%、2级41%、3级16%;皮肤急性反应1级78%、2级16%;急性口干反应1级65%、2级18%.结论 鼻腔和韦氏环NK/T细胞淋巴瘤IMRT使靶区剂量分布均匀,有效保护了腮腺和其他重要器官,并取得了很好的局部控制率和总生存率.     

早期鼻腔NK/T细胞淋巴瘤治疗方法和预后分析

目的 探讨不同治疗方法对早期鼻腔NK/T细胞淋巴瘤预后的影响.方法 回顾分析15年问85例ⅠE、ⅡE期鼻腔NK/T淋巴瘤放疗及CHOP为主化疗的疗效.单纯化疗(单化组)20例,放疗后±化疗(放化组)17例(单纯放疗11例),化疗后放疗(化放组)48例.生存率计算采用Kaplan-Meier法,并Logrank法检验,Cox回归模型进行多因素分析.结果 全组5年生存率为40%,单化纽、放化组和化放组的分别为13%、54%和47%,放化纽和化放组均优于单化组(P=0.030和0.049).ⅠE局限组与超腔组的5年生存率分别为57%与28%(χ2=8.87,P=0.003),ⅡE期的为23%,与ⅠE超腔组相似(χ2=0.19,P=0.664).近期疗效达到完全缓解与未完全缓解的5年生存率分别为58%与12%(χ2=30.68,P=0.000).放疗剂量≤50 Gy与>50 Gy的完全缓解率分别为56%和86%(χ2=6.11,P=0.013),5年无复发生存率分别为89%与84%(χ2=0.36,P=0.551).首程化疗的68例中≤2、3～4、≥5个疗程者分别为18、20、30例,完全缓解率分别为0%、20%、33%(χ2=7.65,P=0.022).首程先化疗且≥3个疗程的50例和先放疗≥40 Gy的17例的完全缓解率分别为28%和88%(χ2=18.75,P=0.000).结节型和溃疡型的完全缓解率放疗均优于化疗(100%:38%,2X=7.92,P=0.005和100%:11%,χ2=14.40,P=0.000).多因素分析显示临床分期和近期疗效是影响预后的独立因素.结论 早期鼻腔NK/T细胞淋巴瘤首程应选择50 Gy放疗为宜.对于ⅠE期超腔与ⅡE期应酌情联合化疗,但CHOP方案效果欠佳.     

早期鼻腔NK/T细胞淋巴瘤治疗方法和预后分析

Objective To investigate the prognosis of patients with nasal NK/T cell lymphoma receiving different treatment modalities. Methods From 1990 to 2004, 85 patients with stage ⅠE and ⅡE primary nasal NK/T cell lymphomas were retrospectively studied. Twenty patients received chemotherapy of CHOP regimen alone, 11 patients received radiotherapy only, 6 patients received radiotherapy followed by more than 2 cycles of chemotherapy, and 48 patients received more than 2 cycles of chemotherapy followed by radiotherapy. Survival analysis was performed by the Kaplan-Meier method, the difference between groups was evaluated by the Log-rank test, and the Cox regression model was used for multivariate analysis. Results The 5-year overall survival rate (OS) was 40%. The 5-year OS was 57% and 28% for limited stage ⅠE and extended stage ⅠE(X2 =8. 87, P =0. 003), and 23% for stage ⅡE, which was similar to extended stage ⅠE (X2 =0. 19, P-0. 664). The 5-year OS was 13%, 54% and 47% for chemotherapy alone, radiotherapy followed with or without chemotherapy, and chemotherapy followed by radiotherapy, respectively. The last two groups had better OS than chemotherapy alone (P = 0. 030 and 0.049). The 5-year OS was 58% and 12% for patients achieving complete response (CR) and uncomplete response (X2 = 30.68, P = 0. 000).The CR rate was 56% and 86% for radiotherapy of ≤50 Gy and >50 Gy (X2 =6.11, P=0. 013). The corresponding 5-year relapse-free survival rate was 89% and 84% (X2 =0.36, P=0.551). Of 68 patients receiving initial chemotherapy, the CR rate of those who received ≤2, 3-4 and ≥5 cycles was 0, 20%and 3 3 % , respectively (X2 = 7.65 , P = 0. 022) . For 5 0 patients who received ≥ 3 cycles of initial chemotherapy and 17 patients who received initial radiotherapy of ≥40 Gy, the CR rate was 28% and 88%(χ2= 18. 75, P= 0. 000). In patients with pathological nodular and ulcer type, the CR rates with radiotherapy were higher than with chemotherapy (100%: 38%, χ2 = 7.92, P = 0. 005; and 100%: 11%,χ2 = 14.40, P = 0. 000). Multivariate analysis showed that stage and recent effect were the independent prognostic factors. Conclusions The initial radiotherapy with 50 Gy is appropriate for early stage nasal NK/T cell lymphomas. Combined chemotherapy could be used for extended stage ⅠE and ⅡE, but the outcome of CHOP regimen is poor.     

早期鼻腔NK/T细胞淋巴瘤治疗方法和预后分析

Objective To investigate the prognosis of patients with nasal NK/T cell lymphoma receiving different treatment modalities. Methods From 1990 to 2004, 85 patients with stage ⅠE and ⅡE primary nasal NK/T cell lymphomas were retrospectively studied. Twenty patients received chemotherapy of CHOP regimen alone, 11 patients received radiotherapy only, 6 patients received radiotherapy followed by more than 2 cycles of chemotherapy, and 48 patients received more than 2 cycles of chemotherapy followed by radiotherapy. Survival analysis was performed by the Kaplan-Meier method, the difference between groups was evaluated by the Log-rank test, and the Cox regression model was used for multivariate analysis. Results The 5-year overall survival rate (OS) was 40%. The 5-year OS was 57% and 28% for limited stage ⅠE and extended stage ⅠE(X2 =8. 87, P =0. 003), and 23% for stage ⅡE, which was similar to extended stage ⅠE (X2 =0. 19, P-0. 664). The 5-year OS was 13%, 54% and 47% for chemotherapy alone, radiotherapy followed with or without chemotherapy, and chemotherapy followed by radiotherapy, respectively. The last two groups had better OS than chemotherapy alone (P = 0. 030 and 0.049). The 5-year OS was 58% and 12% for patients achieving complete response (CR) and uncomplete response (X2 = 30.68, P = 0. 000).The CR rate was 56% and 86% for radiotherapy of ≤50 Gy and >50 Gy (X2 =6.11, P=0. 013). The corresponding 5-year relapse-free survival rate was 89% and 84% (X2 =0.36, P=0.551). Of 68 patients receiving initial chemotherapy, the CR rate of those who received ≤2, 3-4 and ≥5 cycles was 0, 20%and 3 3 % , respectively (X2 = 7.65 , P = 0. 022) . For 5 0 patients who received ≥ 3 cycles of initial chemotherapy and 17 patients who received initial radiotherapy of ≥40 Gy, the CR rate was 28% and 88%(χ2= 18. 75, P= 0. 000). In patients with pathological nodular and ulcer type, the CR rates with radiotherapy were higher than with chemotherapy (100%: 38%, χ2 = 7.92, P = 0. 005; and 100%: 11%,χ2 = 14.40, P = 0. 000). Multivariate analysis showed that stage and recent effect were the independent prognostic factors. Conclusions The initial radiotherapy with 50 Gy is appropriate for early stage nasal NK/T cell lymphomas. Combined chemotherapy could be used for extended stage ⅠE and ⅡE, but the outcome of CHOP regimen is poor.     

早期结外NK/T细胞淋巴瘤的预后分析

目的 分析早期上呼吸消化道结外NK/T细胞淋巴瘤(UADT ENKTCL)放疗联合以门冬酰胺酶/培门冬酶为主的化疗疗效及预后因素。方法 收集2003—2020年间贵州省肿瘤医院收治的 267例早期UADT ENKTCL患者,其中放疗或联合门冬酰胺酶/培门冬酶为主要方案化疗的 229例,单纯放疗或化疗的 38例。Kaplan-Meier计算总生存(OS)、无进展生存(PFS)并log-rank法检验和单因素分析,Cox模型多因素分析。结果 全组 5年OS、PFS分别为67.2%、61.5%;放化综合治疗、单纯放疗、单纯化疗的 5年OS分别为71.7%、35%、49%(P<0.001),5年PFS分别为66%、35%、28%(P<0.001)。放化疗患者基于NRI危险分层分为预后良好、预后不良组,5年OS分别为93.3%、64.3%(P<0.001),5年PFS分别为91.1%、56.7%(P<0.001);放疗剂量≥50Gy、<50Gy组 5年OS分别为72.4%、55.7%(P<0.001),5年PFS分别为68.3%、36.5%(P<0.001)。预后不良组化疗周期数≥4个、<4个的 5年OS分别为65.5%、59.2%(P=0.049),5年PFS分别为60.7%、50.6%(P=0.018)。单因素分析显示Ⅱ期、ECOG≥2分、超腔、单纯放疗、NRI≥1分、EB病毒-DNA≥2750 copies/ml、放疗剂量<50Gy,化疗周期数<4个为 5年OS及PFS的预后不良因素(均 P<0.05);CHOP类化疗方案仅为PFS的预后不良因素(P<0.05)。多因素分析显示超腔、ECOG≥2分、放疗剂量<50Gy均为OS和PFS的预后不良因素(均 P<0.05),Ⅱ期为OS的预后不良因素(P<0.05)。结论 早期低危UADT ENKTCL预后良好;足够剂量的扩大受累野放疗是早期UADT ENKTCL根治性手段;综合治疗较单纯放疗能改善早期预后不良组患者的预后;足疗程化疗能显著改善预后不良组的远期生存,门冬酰胺酶为基础的化疗均能较好的改善早期UADT ENKTCL的预后。     

诱导化疗联合放疗在早期结外NK/T细胞淋巴瘤的预后分析

目的 分析早期结外NK/T细胞淋巴瘤(ENKTCL)使用诱导化疗联合放疗的疗效及预后因素。方法 2003—2021年间贵州医科大学附属肿瘤医院收治287例早期ENKTCL患者,接受诱导化疗联合放疗的综合治疗,分析早期NKTCL的临床预后相关因素。Kaplan-Meier计算总生存(OS)、无进展生存(PFS)及log-rank法检验和单因素分析,Cox模型多因素分析。结果 全组5年OS、PFS分别为72.8%、68.9%;基于改良的Nomogram风险指数(NRI)预后模型分为低危组(0分)、中低危组(1分)、中高危组(2分)、高危组(3分)和极高危组(≥4分)的5年OS分别为95.6%、76.3%、69.5%、61.0%和23.3%(P<0.001),5年PFS分别为93,2%、69.8%、64.6%、60.2%和23.3%(P<0.001)。放疗剂量≥50Gy和<50Gy组5年OS分别为73.8%和65.9%(P=0.123),5年PFS分别为72.8%和45.3%(P=0.001)。诱导化疗近期疗效为CR、PR、SD、PD的5年OS分别为85.4%、74.0%、61.8%、28.5%(P<0.001),5年PFS分别为83.7%、66.8%、65.7%、27.4%(P<0.001)。单因素分析显示Ⅱ期、ECOG≥2分、超腔、放疗剂量<50Gy、诱导化疗近期疗效为5年OS及PFS的预后不良因素(均P<0.05),多因素分析显示超腔、ECOG≥2分、Ⅱ期为OS预后不良因素(均P<0.05),而超腔、ECOG≥2分为PFS的预后不良因素(均P<0.05)。结论 早期结外NK/T细胞淋巴瘤采用以诱导化疗联合足量放疗能取得较好疗效;对诱导化疗近期疗效能够达到完全缓解预后良好。     

鼻腔NK/T细胞淋巴瘤的预后因素分析

目的探讨鼻腔NK／T细胞淋巴瘤患者预后的影响因素。方法收集61例鼻腔NK／T细胞淋巴瘤患者的临床病理资料,并进行随访。其中30例可取得病理组织标本,用免疫组化方法检测survivin、CD44、nm23、p53、Ki-67、多药耐药基因（MDR-1）和CD95。鼻腔NK／T细胞淋巴瘤患者预后的影响因素采用单因素分析和Cox比例风险模型多因素分析。结果单因素分析显示,一般状况（PS）评分、乳酸脱氢酶（LDH）、Ann Arbor分期、首次治疗的疗效、CD56、Ki-67、CD95与鼻腔NK／T细胞淋巴瘤疾病进展时间（TTP）有关,PS评分、B症状、LDH、首次治疗的疗效、Ki-67、CD95与患者的生存期有关。多因素分析显示,PS评分、Ann Arbor分期、疗效为TTP的独立影响因素,PS评分、疗效为生存期的独立影响因素。结论PS评分、Ann Arbor分期、首次治疗的疗效为TTP的独立影响因素,PS评分、首次治疗的疗效为生存期的独立影响因素。Ki-67高表达可能对预后有不良影响,而CD95高表达则可能有利于患者的预后。     

早期鼻腔NK/T细胞淋巴瘤局部侵犯特点和靶区定义

目的 分析早期鼻腔NK/T细胞淋巴瘤病例影像学上各个解剖部位受侵概率,为临床靶区设计提供依据.方法 回顾分析1987-2009年经病理证实的222例Ⅰ E、Ⅱ E期鼻腔NK/T细胞淋巴瘤.以影像学为标准,明确邻近受侵器官和结构数目以及淋巴结转移情况.结果 222例患者中64%患者原发肿瘤累及至少一个或多个邻近器官或结构.将鼻腔周围结构依据受侵概率高低分为高危受侵区域(≥40%):筛窦(60%)和上颌窦(55%);中危受侵区域(5%～40%):鼻咽(39%)、鼻背皮肤(22%)、口咽(12%)、眼眶(10%)和硬腭(10%);低危受侵区域(≤5%):蝶窦(3%)、额窦(3%)、软腭(3%)和颅底(1%).全组病例颈部淋巴结转移率为16%(36例).33例Ⅱ E期患者因有影像检查可明确分析颈部淋巴结转移部位,其中最常见受侵区域为颌下或颏下(57%)和上颈部淋巴结(57%).肿瘤局限于一侧鼻腔,对侧颈部淋巴结转移占全部颈淋巴结转移病例(33例)的54%;肿瘤侵犯双侧鼻腔,55%的病例有双侧颈部淋巴结转移.88例超腔Ⅰ期病例未行颈部淋巴结预防照射,颈部淋巴结失败率仅为1%.Ⅰ E期同时合并韦氏环如鼻咽(23例)和口咽(7例)受侵病例,未行颈部淋巴结预防照射,未出现颈部淋巴结失败病例.结论 早期鼻腔NK/T细胞淋巴瘤放疗时应将周围高危解剖结构纳入临床靶区范围,并依据个体侵犯特点考虑中危区域及低危区域的纳入;对颈部淋巴结处理,Ⅰ E期不行颈部预防照射,Ⅱ E期推荐行双侧全颈部照射.

Abstract：

Objective To define the patterns of local extension and nodal involvement in patients with early stage nasal NK/T-cell lymphoma, and to improve the delineation of clinical target volume.Methods Two hundred and twenty-two patients consecutively diagnosed with nasal NK/T-cell lymphoma were reviewed.All patients had stage Ⅰ E/Ⅱ E diseases.CT/MRI images were reviewed to determine the local invasion of adjacent organs or structures and involvement of lymph node.Results 143 of 222(64%) patients had primary tumor extended into adjacent organs or structures from nasal cavity.According to the incidence rates of tumor extension, the involved organs or structures were subclassified into three subgroups:high risk (≥40%):ethmoid sinus (60%) and maxillary sinus (55%);intermediate risk (5%-40%):nasopharynx (39%), skin (22%), oropharynx (12%), orbit (10%), and hard palate (10%);and low risk (≤5%):sphenoid sinus (3%), soft plate (3%),frontal sinus (3%) and skull base (1%).Cervical lymph node metastasis occurred in 16%(36/222) of the patients and these patients were staged as Ⅱ E.Thirty-three patients with stage Ⅱ E disease had available images and were analyzed for the pattern of nodal involvement.Submandibular or submental (57%) and the upper cervical lymph nodes (57%) were the most commonly involved sites of nodal region.For the 24 patients with primary tumor located in the unilateral nasal cavity, 54% presented with contralateral cervical lymph node metastasis.Whereas for the 9 patients with primary tumor located in the bilateral nasal cavity, 57% had bilateral cervical lymph node metastasis.For the 88 patients with extensive stage Ⅰ E disease who did not receive irradiation to the cervical lymph node, only one patient (1%) had disease relapse in cervical lymph node.Furthermore, all patients with disease extended to nasopharynx (n= 23) or oropharynx (n= 8) did not receive prophylactic cervical lymph node irradiation, and none of them developed cervical lymph node relapse.Conclusions The delineation of clinical target volume for early stage nasal NK/T-cell lymphoma should be determined by the risk of involvement of paranasal structures and cervical lymph node.Prophylactic neck irradiation is not recommended for patients with stage Ⅰ disease.     

鼻型NK/T细胞淋巴瘤研究进展

目的:总结鼻型NK/T细胞淋巴瘤的研究进展。方法:应用Medline及CNKI期刊全文数据库检索系统,检索1992-01-2007-12关于鼻型NK/T细胞淋巴瘤分子发病机制、临床病理和免疫组化研究及治疗方面的文献。最后纳入32篇。结果:鼻型NK/T细胞淋巴瘤主要发生于鼻腔及面中线部位,也可以发生于其他部位,如皮肤、胃肠道、中枢神经系统、肺以及睾丸等。病理学上,肿瘤细胞胞质CD3及CD56阳性,同时表达细胞毒性颗粒蛋白,如TIA-1等,往往也表达EBV病毒抗原。鼻型NK/T细胞淋巴瘤预后不良,易复发且对治疗不敏感。新的国际预后指数已用于评价该肿瘤的预后。从单独放疗到高剂量的化疗以及造血干细胞移植术等几种治疗手段已应用于临床。结论:鼻型NK/T细胞淋巴瘤与EB病毒有关,具有独特的临床病理特点,放化疗联合运用可提高其治疗效果。     

P-Gemox方案联合调强放疗治疗早期结外NK/T细胞淋巴瘤的临床疗效

目的 探讨P-Gemox方案联合调强放疗治疗早期结外NK/T细胞淋巴瘤（extranodal NK/T-cell lymphoma,ENKTL）的疗效。方法 回顾性分析四川省肿瘤医院2012年3月至2017年10月初治的73例ENKTL患者的临床资料,根据治疗方案分为P-Gemox方案夹心放疗组（n=38）和P-Gemox方案序贯放疗组（n=35）,比较两组患者的近期和远期临床疗效。结果 73例ENKTL患者总有效率（ORR）为95.9%,3年无进展生存率（PFS）为73.5%,3年总生存率（OS）为81.9%。P-Gemox方案夹心放疗组ORR为97.4%,3年PFS和OS分别为74.2%和84.1%。P-Gemox方案序贯放疗组ORR为94.3%,3年PFS和OS分别为72.6%和79.2%。两组ORR、PFS和OS差异均无统计学意义（P＞0.05）。控制相关潜在混杂因素后,多因素Cox回归分析显示,P-Gemox方案夹心放疗组与P-Gemox方案序贯放疗组的PFS相当（HR=0.617,95%CI：0.353~1.081,P=0.091）,而P-Gemox方案夹心放疗组较P-Gemox方案序贯放疗组OS更好 （HR=0.556,95%CI：0.314~0.982,P=0.043）。两组化疗毒副反应以Ⅰ～Ⅱ级为主,其中P-Gemox方案夹心放疗组较P-Gemox方案序贯放疗组更容易发生Ⅰ～Ⅱ度转氨酶升高（P＜0.05）,血液学、胃肠道等毒副反应,发生率差异无统计学意义（P＞0.05）。结论 P-Gemox方案夹心放疗与P-Gemox方案序贯放疗的近期疗效和PFS相当,但P-Gemox方案夹心放疗较P-Gemox方案序贯放疗可提高患者OS。     

结外鼻型NK/T细胞淋巴瘤放化疗研究进展

结外鼻型NK/T细胞淋巴瘤（extranodal NK/T-cell lymphoma,nasal type ENKTL）是侵袭性非霍奇金淋巴瘤的一种特殊类型,由于发病率低,目前临床治疗证据大部分来自回顾性分析或小样本的Ⅱ期临床试验,缺乏大型的随机对照研究,暂无统一的治疗标准。放疗、化疗是ENKTL的主要治疗方法,但目前放、化疗策略选择仍存在争议性,是否联合放化疗、放化疗联合方式、化疗方案选择等方面均未形成统一的认识。对于早期（Ⅰ/Ⅱ期）患者目前多以放疗联合化疗的治疗方法,Ⅲ/Ⅳ期患者多采用以全身化疗为主。以L-门冬酰胺酶（L-ASP）为基础的化疗药物在各期及复发难治性ENKTL中疗效结果显示均较CHOP或CHOP样化疗方案好。最佳的化疗方案以及化疗与放疗结合方式仍需通过更多的、更大型的Ⅲ期随机对照试验来证实。寻找准确的预后因素进行风险分层,根据风险分层结果进行治疗是未来的研究热点和方向。本文将有关放、化疗的研究进展进行综述,以期对该病的治疗提供参考性指导。     

Treatment outcome of angiocentric T-cell and NK/T-cell lymphoma, nasal type: radiotherapy versus chemoradiotherapy

OBJECTIVE: The purpose of this study was to evaluate the treatment outcome of angiocentric T-cell and natural killer (NK)/T-cell lymphoma, nasal type. METHODS: Between February 1989 and March 2001, 53 patients with newly diagnosed angiocentric T-cell and NK/T-cell lymphoma, nasal type involving the head and neck, were treated with radiation therapy (RT). There were 37 males and 16 females. The median age of the patients was 45 years (range 19-73). Twenty of them were treated with chemoradiotherapy (CRT), while 33 with treated with RT alone. The median follow-up period was 74 months (range 6-173). RESULTS: The 5-year overall survival rate of all patients was 69%. CRT appeared to be inferior to RT alone in terms of 5-year overall survival, though the difference was not statistically significant (59 versus 76%, P = 0.27). CONCLUSIONS: There was no difference in survival between RT and CRT in angiocentric T-cell and NK/T-cell lymphoma, nasal type.     

鼻腔自然杀伤/T细胞淋巴瘤放射治疗的疗效和影响因素

 目的　回顾分析鼻腔自然杀伤（NK）／T细胞淋巴瘤的放射治疗效果,并分析其预后因素。方法　回顾分析9年间接受放射治疗的62例鼻腔NK／T细胞淋巴瘤的临床资料和疗效,单因素分析采用Kaplan-Meier法,多因素分析用COX比例风险模型。结果　全组中位生存时间69.7个月（95 % CI为63.0～78.0个月）,3、5年总生存率分别为66.1 %和46.8 %,远处转移导致治疗失败占61.8 %。T淋巴细胞CD3升高组和降低组的中位生存时间分别为72.6个月和39.6个月,两组比较差异有统计学意义（χ2＝4.9309,P＝0.0264）。多因素分析表明,修正后国际预后指数（IPI）为0～1（χ2＝7.5266,P＝0.0061）、CD3升高（χ2＝9.0912,P＝0.0266）和治疗结束达到CR（χ2＝9.0912,P＝0.0106）是影响鼻腔NK／T细胞淋巴瘤放疗总生存的有利预后因素。结论　放射治疗鼻腔NK／T细胞淋巴瘤疗效肯定,但远处转移治疗失败率高,全身治疗仍具有重要地位;修正后IPI为0～1、CD3升高、治疗结束达到CR是影响鼻腔NK／T细胞淋巴瘤放疗总生存的有利预后因素。     

原发肿瘤负荷对结外鼻型NK/T细胞淋巴瘤预后影响

目的 结外鼻型NK/T细胞淋巴瘤尚缺乏有效临床预后和治疗决策因子。本研究旨在定义原发肿瘤负荷(PTB)的临床特征和预后作用。方法 共回顾性收录10家医院1383例病例,其中Ⅰ期947例(68.5%),Ⅱ期326例(23.6%),Ⅲ—Ⅳ期110例(8.0%)。751例患者(54.3%)具有高PTB (H-PTB)特征。Kaplan-Meier法计算生存率Logrank检验,Cox模型多因素分析。结果 H-PTB与疾病侵袭性高、B症状、进展期、区域淋巴结受累、乳酸脱氢酶升高及一般状况差相关。H-PTB组5年OS、PFS更差,分别为50.2%、41.8%,对比低P3TB (L-PTB)分别为72.1%、62.5%(P=0.000、0.000)。多因素分析PTB是OS (HR=1.851)和PFS (HR=1.755)的独立预后因素。H-PTB在局限期患者中,与局部区域控制降低有关,5年局部区域控制率为71.6%,对比L-PTB组为84.3%(P=0.000)。结论 NKTCL中,H-PTB与多个不良临床特征相关,是生存和LC的不良预后因素。H-PTB可作为疾病风险分层和治疗调整的可靠指标。     

鼻型结外NK/T细胞淋巴瘤的诊断与治疗进展

鼻型结外NK/T细胞淋巴瘤以往被称为致死性中线肉芽肿、中线恶性组织细胞癌.新近WHO淋巴组织肿瘤分类和REAL分类认为本病是非霍奇金淋巴瘤(NHL)的一个独立病种.其瘤细胞大部分来源于外周NK细胞,少部分来自NK样(细胞毒性)T细胞.鼻型NK/T细胞淋巴瘤少见,多分布于亚洲及南美地区.发病与EB病毒密切相关.病理组织学、免疫表型特征结合临床发病部位是诊断的主要依据.本病多预后不良.传统疗法及近年来尝试化疗(CHOP类方案)联合病灶野照射的综合治疗,疗效均不佳.新近报告应用左旋门冬酰胺酶为主的挽救化疗方案联合病灶野放疗,疗效有所提高;自体或同种异基因造血干细胞移植治疗的研究正在进行.