Clinical features and treatment outcomes of primary ocular adnexal mucosa-associated lymphoid tissue lymphoma: a single center retrospective analysis of 64 patients in China

AIM: To investigate the clinical features, treatment and prognosis of primary ocular adnexal mucosa-associated lymphoid tissue lymphoma(POAML).METHODS: A retrospective analysis was performed on 64 patients with POAML who were admitted to the First Affiliated Hospital of Zhengzhou University from January 2006 to December 2018.RESULTS: With a median follow-up of 61 mo(range, 2-156 mo), estimated overall survival(OS) rate and progressionfree survival(PFS) rate at 10 y reached 94.5% and 61.5%, respectively. Median OS time and PFS time were not reached. During this period, only 3 patients died, but none of them died directly due to disease progression. One patient(1.6%) developed transformation to diffuse large B-cell lymphoma(DLBCL). Of the 56 patients achieved complete remission after first-line treatment, 5(8.9%) developed local and/or systemic relapse eventually. Patients ≥60 y had significantly shorter PFS than younger patients(P=0.01). For patients with early stages(Ann Arbor stage I and stage II), univariate analysis confirmed that radiotherapydose lower than 32 Gy were independently associated with shorter PFS(P=0.04). Other factors including gender, bone marrow involvement, the initial location of the disease, and the laterality were not associated with PFS.CONCLUSION: The data from our center indicate that POAML has a slow clinical progression and has an excellent clinical outcome. Patients with POAML harbor a continual risk of relaps and transformation to aggressive subtype of lymphoma.

Laterally spreading tumor-like primary rectal mucosa-associated lymphoid tissue lymphoma:A case report

BACKGROUND Colorectal mucosa-associated lymphoid tissue(MALT)lymphoma is a rare disease,and only a few cases have been reported to date.It has no specific clinical presentations and shows various endoscopic appearances.There is no uniform consensus on its treatment.With the advancement of endoscopic technology,endoscopic treatment has achieved better results in individual case reports of early-stage patients.CASE SUMMARY We report a case of rectal MALT in a 57-year-old Chinese man with no symptoms who received endoscopy as part of a routine physical examination,which incidentally found a 25 mm×20 mm,laterally spreading tumor(LST)-like elevated lesion in the rectum.Therefore,he was referred to our hospital for further endoscopic treatment.Complete and curable removal of the tumor was performed by endoscopic submucosal dissection.We observed enlarged and dilated branch-like vessels similar to those of gastric MALT lymphoma on magnifying endoscopy with narrow-band imaging.And immunopathological staining showed hyperplastic capillaries in the mucosa.Histopathological findings revealed diffusely hyperplastic lymphoid tissue in the lamina propria,with a visible lymphoid follicle structure surrounded by a large number of diffusely infiltrated lymphoid cells that had a relatively simple morphology and clear cytoplasm.In addition,immunohistochemical analysis suggested strongly positive expression for CD20 and Bcl-2.Gene rearrangement results showed positivity for IGH-A,IGH-C,IGK-B,and IGL.Taking all the above findings together,we arrived at a diagnosis of extranodal marginal zone B-cell lymphoma of MALT lymphoma. Positron emission tomography-computed tomographyexamination showed no other lesions involved. The patient will be followed byperiodic endoscopic observation.CONCLUSIONIn conclusion, we report a case of rectal MALT with an LST-like appearancetreated by endoscopic submucosal dissection. Further studies will be needed toexplore the clinical behavior, endoscopic appearance, and treatment of rectalMALT.

Nomogram model predicting the overall survival for patients with primary gastric mucosa-associated lymphoid tissue lymphoma

BACKGROUND Increasingly extranodal marginal B-cell lymphoma of mucosa-associated lymphoid tissue,known as mucosa-associated lymphoid tissue(MALT)lymphoma,is a type of non-Hodgkin’s lymphoma.The prognosis of primary gastric MALT(GML)patients can be affected by many factors.Clinical risk factors,including age,type of therapy,sex,stage and family hematologic malignancy history,also have significant effects on the development of the disease.The available data are mainly focused on epidemiology;in contrast,few studies have investigated the prognostic variables for overall survival(OS)in patients with primary GML.Based on the realities above,we searched a large amount of data on patients diagnosed with primary GML in the Surveillance,Epidemiology and End Results(SEER)database.The aim was to develop and verify a survival nomogram model that can predict the overall survival prognosis of primary GML by com-bining prognostic and determinant variables.AIM To create an effective survival nomogram for patients with primary gastric GML.METHODS All data of patients with primary GML from 2004 to 2015 were collected from the SEER database.The primary endpoint was OS.Based on the LASSO and COX regression,we created and further verified the accuracy and effectiveness of the survival nomogram model by the concordance index(C-index),calibration curve and timedependent receiver operating characteristic(td-ROC)curves.RESULTS A total of 2604 patients diagnosed with primary GML were selected for this study.A total of 1823 and 781 people were randomly distributed into the training and testing sets at a ratio of 7:3.The median follow-up of all patients was 71 mo,and the 3-and 5-year OS rates were 87.2%and 79.8%,respectively.Age,sex,race,Ann Arbor stage and radiation were independent risk factors for OS of primary GML(all P<0.05).The C-index values of the nomogram were 0.751(95%CI:0.729-0.773)and 0.718(95%CI:0.680-0.757)in the training and testing cohorts,respectively,showing the good discrimination ability of the nomogram model.Td-ROC curves and calibration plots also indicated satisfactory predictive power and good agreement of the model.Overall,the nomogram shows favorable performance in discriminating and predicting the OS of patients with primary GML.CONCLUSION A nomogram was developed and validated to have good survival predictive performance based on five clinical independent risk factors for OS for patients with primary GML.Nomograms are a low-cost and convenient clinical tool in assessing individualized prognosis and treatment for patients with primary GML.

Disseminated soft tissue diffuse large B-cell lymphoma involving multiple abdominal wall muscles:A case report

BACKGROUND Diffuse large B-cell lymphoma(DLBCL)is the most common subtype of non�Hodgkin lymphoma,and patients with DLBCL typically present rapidly growing masses.Lymphoma involving muscle is rare and accounts for only 5%;furthermore,multiple muscles and soft tissue involvement of DLBCL is unusual.Due to unusual clinical manifestation,accurate diagnosis could be delayed.CASE SUMMARY A 61-year-old man complained of swelling,pain and erythematous changes in the lower abdomen.Initially,soft tissue infection was suspected,however,skin lesion did not respond to antibiotics.18Fluoro-2-deoxy-D-glucose(18F-FDG)positron emission tomography-computed tomography demonstrated FDG uptake not only in the skin and subcutaneous tissue of the abdomen but also in the abdominal wall muscles,peritoneum,perineum,penis and testis.DLBCL was confirmed by biopsy of the abdominal wall muscle and subcutaneous tissue.After intensive treatment including chemotherapy with rituximab,cyclophosphamide,doxorubicin,vincristine and prednisolone,central nervous system prophylaxis(intrathecal injection of methotrexate,cytarabine and hydrocortisone)and orchiectomy,he underwent peripheral blood stem cell mobilization for an autologous hematopoietic stem cell transplantation.Despite intensive treatment,the disease progressed rapidly and the patient showed poor outcome(overall survival,9 mo;disease free survival,3 mo).CONCLUSION The first clinical manifestation of soft tissue DLBCL involving multiple muscles was similar to the infection of the soft tissue.

Primary gastric non-Hodgkin lymphomas:Recent advances regarding disease pathogenesis and treatment

Primary gastric lymphomas(PGLs)are distinct lymphoproliferative neoplasms described as heterogeneous entities clinically and molecularly.Their main histological types are diffuse large B-cell lymphoma(DLBCL)or mucosaassociated lymphoma tissue.PGL has been one of the main fields of clinical research of our group in recent years.Although gastric DLBCLs are frequent,sufficient data to guide optimal care are scarce.Until today,a multidisciplinary approach has been applied,including chemotherapy,surgery,radiotherapy or a combination of these treatments.In this minireview article,we provide an overview of the clinical manifestations,diagnosis and staging of these diseases,along with their molecular pathogenesis and the most important related clinical published series.We then discuss the scientific gaps,perils and pitfalls that exist regarding the aforementioned studies,in parallel with the unmet need for future research and comment on the proper methodology for such retrospective studies.Aiming to fill this gap,we retrospectively evaluated the trends in clinical presentation,management and outcome among 165 patients with DLBCL PGL who were seen in our institutions in 1980-2014.The study cohort was divided into two subgroups,comparing the main 2 therapeutic options[cyclophosphamide doxorubicin vincristine prednisone(CHOP)vs rituximab-CHOP(R-CHOP)].A better outcome with immunochemotherapy(R-CHOP)was observed.In the next 2 mo,we will present the update of our study with the same basic conclusion.

Marginal zone lymphoma with severe rashes: A case report

BACKGROUND Marginal zone lymphoma(MZL)is an indolent subtype of non-Hodgkin lymphoma(NHL),which is rare clinically with severe rashes as the initial symptom.CASE SUMMARY This study reports a case of MZL with generalized skin rashes accompanied by pruritus and purulent discharge.First-line treatment with rituximab combined with zanubrutinib had poor effects.However,after switching to obinutuzumab combined with zanubrutinib,the case was alleviated,and the rashes disappeared.CONCLUSION For patients with advanced stage MZL not benefiting from type I anti-CD20 monoclonal antibody(mAb)combination therapy,switching to a type II anti-CD20 mAb combination regimen may be considered.This approach may provide a new perspective in the treatment of MZL.

肺黏膜相关淋巴组织淋巴瘤的CT与MRI影像特征分析

目的:分析肺黏膜相关淋巴组织(MALT)淋巴瘤的CT与MRI影像特征,以提高其影像诊断水平。方法:收集2010年4月-2023年6月于南京中医药大学附属医院经病理确诊的34例肺MALT淋巴瘤病例,回顾性分析其临床资料与CT、MRI影像特征。其中,有23例患者行CT增强扫描,3例患者(共11处病灶)行MRI平扫+增强检查。结果:34例肺MALT淋巴瘤患者中,结节肿块型与肺炎实变型分别占47.1%、44.1%,双侧、多发病灶分别占55.9%、58.8%,病灶沿胸膜下+支气管周围分布约占44.1%,跨叶分布发生率约为26.5%。CT重要的影像特征包括:中重度均匀强化(95.5%)、血管造影征(86.3%)、肺间质增厚(61.8%)、支气管扩张(58.8%)、合并肺囊肿(55.9%)、毛刷状边缘(52.9%)等;MRI重要的影像特征包括:平扫序列信号均匀(100.0%)、低ADC值[(0.878±0.382)×10^(-3)mm^(2)/s]、中重度均匀强化(81.8%)、平台型/流出型时间-信号强度曲线(TIC)(100.0%)。结论:肺MALT淋巴瘤影像表现复杂,形态、分布模式、密度及信号均匀、中-重度均匀强化、血管造影征、支气管扩张、低ADC值、平台型/流出型TIC曲线等征象有助于肺MALT淋巴瘤的诊断。

原发性软组织淋巴瘤7例及临床病理特征

【目的】探讨原发性软组织淋巴瘤的临床病理特征。【方法】对中山大学附属第一医院病理科1999年-2010年十年间淋巴瘤共3724例进行回顾性分析,通过临床资料、病理组织学、免疫组织化学染色发现7例为原发性软组织淋巴瘤并分析其临床病理特征。【结果】7例软组织淋巴瘤患者中5例女性,2例男性;年龄跨度23～76岁,平均年龄52.3岁。发生部位以肢体最常见,其中下肢3例、髂腰肌2例、背部和胸锁乳突肌各1例。肿瘤最大直径1.3～15cm,平均5.7cm。临床分期均为ⅠE期。组织学类型均为非霍奇金淋巴瘤。5例为弥漫大B细胞淋巴瘤,非特殊型(71.4%,5/7);外周T细胞淋巴瘤,非特殊型和间变性大细胞淋巴瘤各1例。【结论】原发性软组织淋巴瘤中老年人多见。好发于肢体。组织学类型主要为弥漫大B细胞淋巴瘤。

原发性肺淋巴瘤临床特点分析

目的总结原发性肺淋巴瘤临床表现、影像学特点、诊断手段、治疗方法及预后,提高临床诊治水平。方法回顾分析5例经病理确诊原发性肺淋巴瘤患者的临床资料并随诊分析预后。结果 5例原发性肺淋巴瘤患者均为女性,年龄34~79岁。查体发现3例,因咳嗽、咳痰和痰中带血就诊2例。发病时间8周至5年。肺部体征无特异性。炎症指标稍升高1例,肿瘤相关指标均正常5例。影像学以肿块影(2/5)、结节(2/5)和实变影(1/5)为主要表现。少数患者肺弥散功能减退(1/5)。经胸腔镜(2/5)、CT引导下肺穿刺(2/5)、开胸手术(1/5)获取病变组织而确诊。原发性肺黏膜相关淋巴组织淋巴瘤4例,原发性肺霍奇金淋巴瘤1例。化疗和手术治疗后随访1.0~8.8年,5例均存活,1例随访至4.5年时可疑复发,其余4例均病情稳定。结论原发性肺淋巴瘤为少见病,临床表现不典型,容易漏诊误诊。病变局限者可考虑手术或放疗,弥漫者首选化疗。预后较好,但复发率高。

软组织原发性淋巴瘤2例MRI表现及病理学分析

目的：探讨软组织原发性淋巴瘤的MRI表现及临床病理学特点.方法：对2例软组织原发性淋巴瘤的临床病理学资料、MRI影像表现进行回顾分析,并复习文献.结果：2例软组织原发性淋巴瘤均位于下肢,分别呈卵圆形和不规则形,病灶直径7.0~12.0 cm.在T1WI呈等信号或略低信号,T2WI呈高信号表现,增强扫描呈轻到中度强化.结论：淋巴瘤原发于软组织者罕见,MRI表现肿瘤信号均匀,囊性变及坏死少见,周围肌间筋膜存在脂肪间隙是其特征.

原发性皮肤边缘区B细胞淋巴瘤临床病理特征

目的探讨原发皮肤边缘区B细胞淋巴瘤(PCMZL)的临床和病理学特征,诊断和鉴别诊断。方法对2例PCMZL和1例皮肤淋巴组织增生(CLP)病例进行临床特征、组织形态学、免疫表型及PCRIgH基因重排分析。结果免疫组化示2例PCMZL的小淋巴细胞CD20和CD79α(),bcl-2、BOB.1和Oct-2(),MUM-1(+),CD5、CD10、bcl-6和CD23(-);浆细胞CD138、MUM-1(),限制性表达轻链kappa。1例CLP的小淋巴细胞CD20、CD3和bcl-2(),MUM1(+);浆细胞同时表达κ及λ。IgH扩增2例PCMZL呈单克隆性,1例CLP显示多克隆性。结论PCMZL属MALT-L家族,形态学上肿瘤细胞由异源性小淋巴细胞组成,免疫学上显示后生发中心标记。浆细胞轻链限制性和B细胞抗原受体基因克隆性重排对诊断有非常重要的帮助。

原发性肺黏膜相关淋巴组织淋巴瘤47例回顾性分析

目的通过回顾性分析47例原发性肺黏膜相关淋巴组织(MALT)淋巴瘤患者的临床、影像学、免疫功能和病理特点,以及诊断、治疗和随访的情况,提高临床医师对该病的认识和诊治水平。方法收集2002年1月—2015年1月在同济大学附属上海市肺科医院经病理活组织检查初次诊断为原发性肺MALT淋巴瘤的47例患者的临床资料和随访结果(截至2015年12月31日),分析其临床、影像学、免疫功能和病理学特点,以及诊断、治疗和随访的情况。结果 (1)临床特点:47例原发性肺MALT淋巴瘤患者中,男女比例为1.35∶1,中位年龄为55岁,42.55%(20/47)的患者通过体格检查发现。(2)影像学特点:主要表现为肺实变或斑片状病灶(65.96%,31/47),74.47%(35/47)的患者肺实变伴支气管充气征,23.40%(11/47)的患者伴纵隔或肺门淋巴结肿大,10.64%(5/47)的患者伴胸腔积液;26例患者行正电子发射计算机断层显像(PET)-CT或肺单光子发射计算机断层显像(SPECT)检查,其中有放射性核素浓聚者占88.46%(23/26),良性病变者占61.54%(16/26)。(3)免疫功能变化:行免疫功能检查26例,其中存在缺陷者占57.69%(15/26);行细胞免疫检查21例,其中存在缺陷者占71.43%(15/21);行体液免疫检查23例,其中存在缺陷者占26.09%(6/23)。42例患者行12项血清肿瘤标志物筛查,其中全阴性者占69.05%(29/42)。(4)病理学特点:47例患者病灶组织免疫组织化学染色CD20、CD79α均为阳性,CD5均为阴性;CD10阴性45例(95.74%)、bcl-2阳性33例(70.21%)。38例行外科手术的患者病理学检查结果显示,Ki-67表达阳性<5%者占44.74%(17/38),Ki-67表达阳性5%～15%者占47.37%(18/38),Ki-67表达阳性>15%者占10.53%(4/38)。(5)诊断:首诊诊断为淋巴瘤仅5例(诊断正确率10.64%),其余分别被误诊为肺炎20例(42.55%)、肺癌16例(34.04%),以及其他肺部疾病6例(12.77%,其中肺结核3例、间质性肺病2例、真菌感染1例);第1次就诊至确诊时间为0.25～108个月。(6)治疗和随访:22例行根治性切除的患者均未行术后化学治疗;余25例患者未行根治性切除,其中72.00%(18/25)的患者行CHOP方案化学治疗。随访时间12～125个月,随访资料完整的患者32例,其中2例因原发性肺MALT淋巴瘤分别于诊断后24和63个月死于淋巴瘤进展,3年和5年生存率分别为96.87%(31/32)和93.75%(30/32)。结论原发性肺MALT淋巴瘤无特征性临床表现,影像学主要表现为肺实变或斑片灶伴支气管充气征,误诊率高。细胞免疫功能缺陷的患者可能更易患此病,及时诊断和治疗预后良好。

原发性胃MALT淋巴瘤的临床分析

目的探讨原发性胃MALT淋巴瘤临床诊断与治疗。方法回顾性分析10a来48例原发性胃MALT淋巴瘤的诊断与治疗情况。结果术前胃镜确诊48.8%(21/43),消化道造影确诊22.6%(7/31),术后组织标本幽门螺杆菌检出阳性率45.2%(19/42);全组手术切除率87.5%(42/48);5a生存率62.7%,ⅠE期单一切除生存率60.4%,术后加用化疗和/或放疗者达87.5%。结论幽门螺杆菌感染与原发性胃MALT淋巴瘤存在关联。原发性胃MALT淋巴瘤与胃癌相比临床上无特异性,术前确诊率低,应结合消化道造影,胃镜及反复活检综合判断。外科手术切除原发灶,联合术后化疗和/或放疗是合理的。

41例原发性胃淋巴瘤的临床特点分析

目的总结原发性胃淋巴瘤的临床特点。方法回顾性分析北京大学人民医院1999年1月～2009年3月原发性胃淋巴瘤患者的临床资料,总结其临床特点,并分析其生存情况及影响预后的因素。结果共有41例原发性胃淋巴瘤患者符合诊断标准,①男女比例为1.93︰1.00,患者平均发病年龄为(57.12±16.23)岁。该病主要症状为上腹不适和上腹痛,占82.93%,幽门螺旋杆菌(helicobacter pylori,Hp)感染率为41.38%,MALT淋巴瘤和混合型淋巴瘤(弥漫性大B细胞淋巴瘤合并MALT淋巴瘤成分)患者的Hp感染率高于弥漫性大B细胞淋巴瘤患者(P<0.05)。②病变主要累及胃体和胃窦(33/40,82.50%),初次胃镜下活检确诊率为82.50%,多次反复胃镜活检确诊率为87.50%。③该组患者病理诊断:40例患者为非霍奇金淋巴瘤B细胞来源,1例为非霍奇金淋巴瘤T细胞来源,其中黏膜相关淋巴组织淋巴瘤12例,弥漫性大B细胞淋巴瘤19例,混合型淋巴瘤7例,2例病理分型不明。④治疗及随访结果:该组患者主要治疗方案为手术+化疗和单纯化疗,全组患者平均生存时间为(62.28±8.58)个月,1年及3年生存率分别为67.00%和59.00%,经手术治疗的患者平均生存时间为(72.42±9.98)个月,单纯化疗患者平均生存时间为(60.38±13.74)个月,二者差异并无统计学意义(P>0.05)。经多因素分析,在该组患者中影响患者生存时间的主要因素为患者就诊时的白蛋白水平(P<0.05)。结论原发性胃淋巴瘤患者发病年龄主要为50岁以上,男性患者多见,无特异性临床表现,诊断较为困难。影像学检查对于发现病灶和确定临床分期有一定帮助,该病确诊尚需行内镜下活检病理诊断或手术病理诊断。多次内镜下活检及多部位活检可提高该病确诊率。多因素分析中,仅就诊时白蛋白水平为预后相关因素(P<0.05)。

原发性肺淋巴瘤的临床特征分析

目的探讨原发性肺淋巴瘤(PPL)的临床诊断要点,以提高对该病的认识。方法收集该院2015年1月-2017年3月经肺活检病理确诊的共11例PPL的临床资料,其中大部分(10例)均经超声支气管镜肺活检确诊,并对有关资料进行回顾性分析。结果 11例PPL患者中,男7例(63.6%),女4例(36.4%),年龄35~72岁,平均(53.2±9.7)岁,以50岁以上(72.7%)多见。临床症状以咳嗽(7例,63.6%)、咯痰(5例,45.5%)、气促(4例,36.4%)多见;无症状者2例(18.2%)。胸部CT表现为四种类型:(1)肺炎型(8例,72.7%);(2)结节(或肿块)型(5例,45.5%);(3)支气管淋巴管型(间质型)(1例,9.1%);(4)粟粒型(1例,9.1%)。72.7%伴支气管充气征,典型者呈枯树枝征。确诊前误诊8例(72.7%),均首诊肺炎或机化性肺炎。结论 PPL的临床表现缺乏特异性,首诊常常容易误诊为肺炎,但影像学改变仍具有一定特征性,如病灶形态多变、多发,伴支气管枯树征等,确诊依赖于病理组织学和免疫组化检测。支气管腔内超声引导下的肺活检阳性率也很高。

胃黏膜相关淋巴样组织淋巴瘤42例临床分析

目的:探讨胃黏膜相关淋巴样组织淋巴瘤的临床表现、病理特征和治疗方法。方法:回顾性分析1990年7月至2008年5月间42例胃MALT淋巴瘤的病理特征和临床分期等资料,并按治疗方式不同划分为单纯根除Hp组(7例)、单纯手术组(9例)、手术+根除Hp组(20例)、手术+放、化疗组(6例),对各治疗组随访结果使用Kaplan-Meier方法进行生存率分析,LogRank检验评估各组间的统计学差异。结果:全组患者均接受胃镜检查,确诊率26.2%(11/42),HP染色阳性率70.6%(24/34)。免疫表型分析证实全部为B细胞性淋巴瘤。全组Cotswolds改良Ann Arbor分期:Ⅰ E2期17例,ⅡE1期16例,ⅡE2期6例,ⅢE期2例,Ⅳ期1例。各组5年生存率分别为100%、83.7%、82.4%及43.0%(P=0.027)。结论:胃MALT淋巴瘤的临床表现和辅助检查均无明显特异性,故初治时接受手术治疗的患者较多病理确诊者可首选根除Hp治疗,疗效与手术无异;晚期患者可在术后选择放、化疗等综合治疗,但远期生存率相对较差。

原发性眼附属器MALT淋巴瘤的临床类型与个体化治疗

黏膜相关淋巴组织(mucosa-associated lymphoid tissue lymphomas,MALT)淋巴瘤是原发性眼附属器淋巴瘤(primary ocular adnexal lymphoma,POAL)中最常见的病理类型。目前,原发性眼附属器黏膜相关淋巴组织淋巴瘤(primary ocular adnexal mucosa-associated lymphoid tissue lymphoma,POAML)的临床类型和临床表现尚未被眼科医师熟练掌握,临床治疗亦无共识和指南。本文根据POAML起源位置,重点介绍各临床类型的早中期临床表现,以及针对各临床类型和病变范围的个体化治疗方法。

原发性胃恶性淋巴瘤与幽门螺杆菌感染的相关性初探

为了探讨原发性胃恶性淋巴瘤(RGML)与幽门螺杆菌(Hp)感染的相关性,本文收集39例 PGML了以及22例淋巴性胃炎、32例 Hp 无关疾病的胃粘膜行对照研究。结果:PGML 组 Hp 检出率87.18%,显著高于对照的63.64、53.13%(P<0.005)。粘膜相关淋巴样组织(MALT)来源的淋巴瘤占92.31%。Hp 检出率达86.11%,瘤周慢性活动性胃炎及淋巴滤泡检出率分别为84.62、56.41%,且炎症活动程度与 Hp 分布密度相关。组织学研究提示胃 B 细胞 MALT 淋巴瘤与 Hp 感染相关。

原发性肝淋巴瘤误诊肝血管瘤1例及国内文献分析

目的探讨原发性肝淋巴瘤的诊断、治疗、预后特点,提高对该肿瘤的认识。方法报道1例误诊为肝血管瘤的原发性肝淋巴瘤患者的诊治经过,并回顾分析1975―2019年国内相关文献,探讨原发性肝淋巴瘤诊治和预后特点。结果本例患者无特异临床表现,在外院误诊为肝血管瘤。我院行MRI检查见肿瘤呈恶性表现并可见血管漂浮征,考虑恶性可能。予肝多发肿瘤切除+肝十二指肠淋巴结清扫+胆囊切除术。手术标本病理组织学表现:肿瘤由大片细胞质少、核具异型性的淋巴样细胞构成,无明显包膜,周边肝组织受淋巴细胞浸润;免疫组织化学染色示:滤泡区细胞大部CD20(+),生发中心细胞CD10(+)、Bcl-6(+)、Bcl-2(-)、Ki-67(80%)。最终诊断为原发性肝B细胞非霍奇金淋巴瘤。检索到的91篇国内文献共报道376例原发性肝淋巴瘤患者,平均年龄为(48.8±9.6)岁,男女比例为1.69∶1。影像学检查以单发病灶多见,乏血供肿瘤表现,以血管漂浮征为特点。146例(38.8%)患者出现乳酸脱氢酶升高。132例(35.1%)患者发生误诊,最终确诊依赖病理结果。生存分析结果显示,B细胞非霍奇金淋巴瘤患者预后较T细胞非霍奇金淋巴瘤患者好(中位总生存时间:36.4个月vs 20.7个月,P=0.009);B细胞非霍奇金淋巴瘤患者中,黏膜相关淋巴组织淋巴瘤患者预后较弥漫大B细胞淋巴瘤患者好(52.0个月vs 30.0个月,P=0.049),手术联合术后化学治疗的患者预后较单纯化学治疗和手术患者好(45.6个月vs 23.9和7.7个月,P=0.016)。结论原发性肝淋巴瘤作为一种少见肿瘤,临床特征不典型,需结合病史、临床表现、影像学、实验室检查综合判断,一旦确诊应采取手术联合化学治疗或综合化学治疗方案进行积极治疗。

外放射治疗治愈原发性葡萄膜淋巴瘤：1例报告及文献复习(英文)

原发性葡萄膜淋巴瘤虽然也是眼内的淋巴瘤,但它的临床特征与原发性眼内(玻璃体视网膜)淋巴瘤完全不同,属于低度恶性B细胞型、粘膜相关性淋巴瘤。该病预后非常好,仅少数患者在治疗后发展为全身性病变,通常不侵犯中枢神经系统,但可蔓延至球结膜下或巩膜表层。本文报告1例确诊为原发性葡萄膜淋巴瘤、经过外放射治疗效果显著的病例,并对这种罕见疾病进行了文献复习。