Colonic lymphoma is a rare malignant gastrointestinal tumor that can be revealed by an exceptional and serious complication: intestinal obstruction. Treatment is based on surgery and chemotherapy. We here report a case of diffuse colonic large B-cell lymphoma revealed by occlusion and diagnosed based on the examination of surgical specimen in a 64-year-old man who was in complete remission after six courses of R-CHOP.

OBJECTIVE: Orbital rhabdomyosarcoma is a rare soft tissue sarcoma in childhood but with a good prognosis. Treatment usually includes surgery, chemotherapy, and radiotherapy. This study aimed to evaluate long-term alterations in teeth and cranial bones in children, adolescents, and young adults after oncologic treatment for childhood orbital rhabdomyosarcoma.
METHODS: This was a cross-sectional study that evaluated patients treated for orbital rhabdomyosarcoma between 1988 and 2011. Demographic, clinical, and treatment data were collected during the study period; also, panoramic radiographs, cephalometric study, and photographs of the face were taken.
RESULTS: Eight long-term survivors were studied. Of those, 50% were male, 75% had less than 5 years of treatment, and 88% had only one of the orbits affected by the tumor. Regarding treatment, 50% received 50.4 Gy of radiotherapy in the orbit; the chemotherapy included vincristine, actinomycin D, and cyclophosphamide in 75% of the cases and also ifosfamide and etoposide in 25%. The children presented craniofacial alterations, mainly when radiotherapy occurred between 0 and 5 years old (p = 0.01). The mandibles also showed dental alterations, probably due to chemotherapy.
CONCLUSIONS: In conclusion, orbital RMS patients treated with chemoradiotherapy, important dental, and facial bone alterations were found. The most significant were in the maxilla and close to the irradiation field. Dental and mandibular bone alterations were also found, indicating the probable chemotherapy action, as this region was not included in the irradiation field.

目的： 探讨血管免疫母细胞性T细胞淋巴瘤（AITL）伴单克隆性浆细胞增生的临床病理学特征。 方法： 收集福建医科大学附属龙岩第一医院2019和2021年期间诊断的2例AITL伴单克隆性浆细胞增生病例，采用HE、免疫组织化学染色，观察组织学形态、免疫表型特征，原位杂交的方法检测EB病毒编码RNA，聚合酶链反应（PCR）检测免疫球蛋白（Ig）基因和T细胞受体（TCR）基因克隆性重排，并结合文献进行复习。 结果： 2例AITL伴单克隆性浆细胞增生的病例均为女性，例1和例2患者年龄分别为72岁和48岁；例1为腹股沟淋巴结，例2为颈部淋巴结。主要临床症状为全身淋巴结无痛性肿大，例1伴低热和胸腹腔积液，例2伴卵巢受累。光镜下，淋巴结结构完全或部分破坏，瘤细胞中等到大，胞质丰富、淡染，核不规则、扭曲或圆形，背景见多种炎性细胞浸润，其中浆细胞数量突出，例2伴有较多B免疫母细胞增生。在免疫表型上，CD21示紊乱增生的滤泡树突细胞网，肿瘤细胞表达多个T细胞标志物CD4（2/2）、CD3（2/2）、CD2（2/2）、CD7（2/2）和CD5（1/2）；大部分肿瘤细胞表达滤泡辅助T细胞标志物CXCL13、bcl-6、PD1和ICOS，局灶表达CD10。背景中的浆细胞例1呈Lambda轻链限制性、例2为Kappa轻链限制性。分子检测显示例1 IgH基因克隆性重排检测阳性，例2为TCR基因克隆性重排检测阳性。 结论： AITL伴单克隆性浆细胞增生罕见，病变淋巴结内可伴有明显B免疫母细胞增生，IgH基因可呈克隆性重排，易误诊为浆细胞病变或B细胞淋巴瘤，充分认识AITL多样的形态学及基因重排特征有助于避免误诊。.

UNASSIGNED: Angioimmunoblastic T-cell lymphoma (AITL) is known for its unfavorable survival prognosis. Chidamide has shown efficacy in relapsed/refractory AITL, but its efficacy in newly diagnosed AITL is uncertain.
UNASSIGNED: This retrospective research aimed to evaluate the effectiveness and safety of chidamide when used with doxorubicin, cyclophosphamide, prednisone, and vincristine (CHOP) in comparison to CHOP by itself for individuals newly diagnosed with AITL, and to examine the impact of transplantation.
UNASSIGNED: This was an analysis that compared outcomes among patients who received chidamide + CHOP on a clinical trial vs. historical controls who received CHOP alone, enrolling a total of sixty-six treatment-naive AITL patients between April 2014 and November 2022. Among them, thirty-three received chidamide in addition to CHOP (chidamide group), while thirty-three received CHOP alone (control group). The clinical characteristics were balanced between the two groups. All patients were scheduled to undergo up to six courses of treatment before transplantation.
UNASSIGNED: The chidamide group had a significantly longer median overall survival (OS) compared to the control group, with a median OS that was not reached, as opposed to 20 months in the control group (p = 0.002). In the control group, the median progression-free survival (PFS) was 11 months, while in the chidamide group, it was 22 months (p = 0.080). In the high-risk group (IPI ≥ 3), the chidamide group demonstrated notably superior complete response (CR) and overall response rate (ORR) compared to the control cohort (p = 0.002, p = 0.034). The PFS and OS in the chidamide group were not reached, and there were significant differences compared to the control group (p = 0.007, p = 0.003). The median OS of the transplanted group was longer than the non-transplanted group (p = 0.004). On multivariate analysis, chidamide group reduced the hazards of death in the total cohort.
UNASSIGNED: As the study was non-random and retrospective, Chidamide combined with chemotherapy should be tested in randomized trials given its potential to improve prognosis in treatment-naive AITL patients. Furthermore, autologous hematopoietic stem cell transplantation (auto-HSCT) has demonstrated enhanced overall survival in individuals with AITL.
UNASSIGNED: https://clinicaltrials.gov/, NCT03268889.

Vincristine-induced peripheral neuropathy (VIPN) is an adverse effect of regimens used for the treatment of aggressive B-cell non-Hodgkin lymphoma (B-NHL). A single-nucleotide polymorphism (SNP) in the promotor region of the CEP72 gene has been identified as risk factor for the development of VIPN in children. To validate these results in adults we aimed to determine the association of the high-risk CEP72 (rs924607 TT genotype) with the occurrence and severity of VIPN. Analysis of SNP rs924607 (TT, CC or CT) was performed in all enrolled patients with available blood samples with a TaqMan genotyping assay. Rates and grades of VIPN were assessed prospectively as part of the RICOVER-60 trial. CEP72 genotype could be assessed in 519 patients. VIPN data was available for 499/519 patients who were included in the final analysis. 286 (57%) patients developed VIPN of any grade during treatment. Grade 2-4 VIPN occurred in 33% (166/499) of patients. The high-risk CEP72 TT genotype at rs924607 was identified in 97/499 (19%) patients. The TT genotype was not correlated with VIPN in the overall study population compared to patients with either CC or CT genotypes (p = 0.748). However, in the subgroup of female patients, the TT genotype was associated with increased occurrence of any-grade VIPN as well as grade 2-4 VIPN as compared to patients with either CC or CT genotypes (p = 0.016 and p = 0.020, respectively). Thus, the SNP rs924607 in the CEP72 gene is associated with increased VIPN incidence in female patients with aggressive B-NHL treated with CHOP chemotherapy. Trial registration ClinicalTrials.gov identifier: NCT00052936, submission date: 2005-06-23, EudraCT Number: 2010-019587-36.

This study aimed to elucidate vincristine (VCR)-induced peripheral neuropathy in aged rats, a poorly understood neurotoxicity. Both young and old Wistar rats were administered VCR (0.1 mg/kg, intraperitoneally (i.p.)) and compared to age-matched controls (0.9% saline; 10 mg/mL, i.p.). Mechanical (MN) and thermal nociceptive (TN) responses were assessed on days 0, 6, 11, and 17. Locomotor response, cognitive ability, and anxious-like behavior were evaluated on days 14, 15, and 16. Results showed MN and TN responses in both young and old VCR-exposed rats. In old rats, VCR exacerbated MN (on days 6, 11, and 17) and TN (on days 6 and 17) responses. VCR also induced cognitive impairments and anxiety-like behavior. Histological analysis revealed Wallerian degeneration in the spinal cords of VCR-exposed rats accompanied by macrophage migration. Furthermore, VCR increased Ca2+-ATPase activity while inhibiting Na+, K+-ATPase activity in young and old rats. VCR altered the homeostasis of Mg2+-ATPase activity. Lipid peroxidation and nitrite and nitrate levels increased in young and old rats exposed to VCR. This study provides valuable insights into VCR\'s mechanistic pathways in aged rats, emphasizing the need for further research in this area.

BACKGROUND: The current treatment regimens for Hodgkin\'s lymphoma (HL) are associated with high incidences of adverse events.
OBJECTIVE: This study aimed to compare the efficacy and safety of doxorubicin + bleomycin + vincristine + dacarbazine (ABVD) and standard bleomycin + etoposide + doxorubicin + cyclophosphamide + vincristine + procarbazine + prednisone (BEACOPP) chemotherapy in the treatment of advanced stage HL.
METHODS: This multicenter, randomized, parallel, open, positive control noninferiority trial was conducted from 2016 to 2019 and comprised 93 subjects who were randomized in a 1:1 ratio between the treatment (BEACOPP; n = 44) and control (ABVD; n = 49) groups.
RESULTS: The primary efficacy endpoint of this trial was the objective response rate (ORR) after eight cycles of chemotherapy, which was 100.00% (36/36) in the treatment group and 95.74% (45/49) in the control group. The incidence of adverse reactions was 100% in both groups. Significant differences (P < 0.05) in the incidences of grade 3 (39/44 [88.64%] vs. 23/49 [46.94%]) and grade 4 (27/44 [61.36%] vs. 8/49 [16.94%]) adverse events were observed between the treatment and control groups, respectively. However, most of these reactions were manageable, with no serious consequences, and were reversible after discontinuation of the treatment.
CONCLUSIONS: Both regimens had a similar ORR and were associated with a high number of adverse events. The ABVD regimen was better tolerated and safer than the standard BEACOPP regimen. This study indicates that the standard BEACOPP regimen may be considered as a treatment option for patients with advanced HL.

Cancer is the leading cause of disease-related death among children. Vincristine (VCR), a key component of childhood cancer treatment protocols, is associated with the risk of peripheral neuropathy (PN), a condition that may be reversible upon drug discontinuation but can also leave lasting sequelae. Single nucleotide polymorphism (SNP) in genes involved in VCR pharmacokinetics and pharmacodynamics have been investigated in relation to an increased risk of PN. However, the results of these studies have been inconsistent. A retrospective cohort study was conducted to investigate the potential association of drug transporter genes from the ATP-binding cassette (ABC) family and the centrosomal protein 72 (CEP72) gene with the development of PN in 88 Caucasian children diagnosed with cancer and treated with VCR. Genotyping was performed using real-time PCR techniques for the following SNPs: ABCB1 rs1128503, ABCC1 rs246240, ABCC2 rs717620, and CEP72 rs924607. The results indicated that age at diagnosis (OR = 1.33; 95% CI = 1.07-1.75) and the ABCC1 rs246240 G allele (OR = 12.48; 95% CI = 2.26-100.42) were associated with vincristine-induced peripheral neuropathy (VIPN). No association was found between this toxicity and CEP72 rs924607. Our study provides insights that may contribute to optimizing childhood cancer therapy in the future by predicting the risk of VIPN.

Canine histiocytic sarcoma (CHS) is a malignant tumor derived from macrophages and dendritic cells. Since effective chemotherapy is needed for CHS cases, we conducted this prospective study to evaluate the efficacy and adverse events of vincristine treatment as a rescue therapy for this disease. We administered vincristine to nine CHS cases that acquired resistance to lomustine or nimustine. Complete remission was achieved in one dog, partial remission in two dogs, stable disease in five dogs, and progressive disease in one dog. The median progression-free survival was 21 days (range: 7-71 days). Severe adverse effect was observed in one dog (Grade 3 thrombocytopenia). It is essential to establish novel effective treatments for CHS.

OBJECTIVE: To investigate the clinical features and prognostic factors of patients with primary extranodal diffuse large B-cell lymphoma (DLBCL) in the rituximab era.
METHODS: The continuous data of newly diagnosed DLBCL patients with complete case data and first-line treated with rituximab, cyclophosphamide, epirubicin, vincristine, prednisone (R-CHOP) or R-CHOP treatment admitted to the Affiliated Hospital of Inner Mongolia Medical University from January 2013 to November 2023 were retrospectively analyzed. The clinical and molecular immunological features and prognosis of extranodal DLBCL were analyzed, Logistics regression model was used to analyzed the influencing factors of patients prognosis.
RESULTS: A total of 237 patients were enrolled, of which 54.4% (129 cases) were primary extranodal sources of DLBCL, and the most common extranodal sites were as follows: stomach (19.4%), colon (14.7%), tonsils (12.4%), skin/muscle (9.3%), central (7.7%), nasal/nasopharynx (6.2%), bone marrow (5.4%), testes (4.7%). The 3-year PFS and OS of DLBCL patients with extranodal involvement of bone marrow, central, liver, gastrointestinal or pulmonary origin were significantly lower than those of other patients with extranodal DLBCL of non-special site origin, and the difference was statistically significant (PFS: 65.2% vs 76.7%, P =0.008; OS: 82.6% vs 88.3%, P =0.04). Multivariate analysis showed that the prognostic factors affecting OS included NCCN-IPI score >3 (OR : 0.142, 95%CI : 0.041-0.495, P =0.002), non-germinal center source (OR : 2.675，95%CI :1.069-6.694，P =0.036), and DEL patients (OR : 0.327, 95%CI : 0.129-0.830, P =0.019). An NCCN-IPI score >3 was the only independent adverse prognostic factor for PFS (OR : 0.235, 95%CI : 0.116-0.474, P < 0.001).
CONCLUSIONS: Patients with primary extranodal source DLBCL are more common in gastrointestinal involvement, and the overall prognosis is worse than that of patients with lymph node origin. NCCN-IPI score is an important independent adverse prognostic factor for predicting overall survival and progression-free survival in patients with primary extranodal diffuse large B-cell lymphoma.
UNASSIGNED: 利妥昔单抗时代原发结外弥漫性大B细胞淋巴瘤：单中心回顾分析.
UNASSIGNED: 探讨利妥昔单抗治疗时代下原发结外弥漫性大B细胞淋巴瘤（DLBCL）患者的临床特征及预后影响因素。.
UNASSIGNED: 回顾性分析2013年1月至2023年11月内蒙古医科大学附属医院收治的一线予以利妥昔单抗、环磷酰胺、表柔比星、长春新碱、泼尼松 (R-CHOP) 或 R-CHOP 类方案化疗且具有完整病例资料的初诊DLBCL患者的连续数据，分析结外DLBCL患者的临床特征、分子免疫学特征及预后，应用Logistics回归模型分析患者预后的影响因素。.
UNASSIGNED: 共纳入237例患者，其中54.4%（129例）为原发结外来源DLBCL，常见的结外部位分别为胃(19.4%)、结肠(14.7%)、扁桃体(12.4%)、皮肤或肌肉(9.3%)、中枢(7.7%)，鼻或鼻咽（6.2%）、骨髓（5.4%）、睾丸（4.7%）。其中，骨髓、中枢、肝脏、胃肠道或肺部起源的结外DLBCL患者3年PFS及OS均明显低于其余非特殊部位结外DLBCL患者，差异具有统计学意义（PFS,65.2% vs 76.7% P =0.008；OS:82.6% vs 88.3%,P =0.04）。多因素分析结果显示，影响结外DLBCL患者OS的预后因素包括：NCCN-IPI评分＞3分（OR :0.142，95%CI :0.041-0.495，P =0.002），非生发中心来源（OR :2.675，95%CI :1.069-6.694，P =0.036）和双表达（DEL）患者（OR :0.327，95%CI :0.129-0.830，P =0.019）。NCCN-IPI评分＞3分是影响PFS的唯一独立不良预后因素（OR :0.235，95%CI :0.116-0.474，P < 0.001）。.
UNASSIGNED: 本中心原发结外DLBCL患者最多见于胃肠道受累，所有结外DBLCL患者中骨髓、中枢、肝脏、胃肠道或肺部起源的患者预后更差。NCCN-IPI评分是预测原发结外DLBCL患者总生存和无进展生存的独立不良预后因素。.