BACKGROUND: Despite the excellent outcomes achieved in the treatment of pediatric Burkitt lymphoma (BL) in high-income countries (HICs), outcomes remain poor in low- and middle-income countries (LMICs). Efforts to improve BL outcomes in Tanzania included the creation of National Treatment Guidelines in 2016. However, disease outcomes in Tanzania following the creation of these guidelines have not been reported to date.
METHODS: Historical records from 2016 to 2021 for patients 0-18 years of age with a diagnosis of BL and seen at Bugando Medical Centre (BMC), in Mwanza, Tanzania, were curated into an electronic database and analyzed descriptively. Patients in this cohort were treated per the Tanzanian National Treatment Guidelines, which include six cycles of cyclophosphamide, vincristine, and methotrexate (COM) chemotherapy with intrathecal methotrexate and cytarabine.
RESULTS: In total, 92 BL patients\' records were eligible for analysis. Patients in this cohort were most commonly Murphy stage II (28%) or stage III (34%). Nearly all, 91%, met International Network for Cancer Treatment and Research (INCTR) high-risk criteria at presentation. Forty-two percent of patients did not receive a biopsy and were treated with a presumed diagnosis of BL alone. A 1-year event-free survival of 29.6% (95% confidence interval [CI]: 20.3%-39.5%) and a 1-year overall survival of 38.5% (95% CI: 28%-48.9%) were observed. A high rate of treatment abandonment (34%) was also observed.
CONCLUSIONS: In a historical cohort of pediatric patients with BL treated per the 2016 Tanzanian National Treatment Guidelines, we observed poor outcomes and a high rate of abandonment. These outcomes appear inferior to those achieved in the INCTR clinical trial that informed the guidelines\' creation, and highlights the importance of \"real-world\" outcomes data in LMICs. These data reinforce the idea that continued clinical research and capacity building efforts are necessary to improve BL outcomes in LMICs.

Marginal zone lymphomas (MZLs) are a rare, indolent group of non-Hodgkin lymphomas with different diagnostic, genetic and clinical features and therapeutic implications. The most common is extranodal MZL of mucosa-associated lymphoid tissue, followed by splenic MZL and nodal MZL. Patients with MZL generally have good outcomes with long survival rates but frequently have a relapsing/remitting course requiring several lines of therapy. The heterogeneous presentation and relapsing course present the clinician with several diagnostic and therapeutic challenges. This position statement presents evidence-based recommendations in the setting of Australia and New Zealand.

Minimal/measurable residual disease (MRD) diagnostics using real-time quantitative PCR analysis of rearranged immunoglobulin and T-cell receptor gene rearrangements are nowadays implemented in most treatment protocols for patients with acute lymphoblastic leukemia (ALL). Within the EuroMRD Consortium, we aim to provide comparable, high-quality MRD diagnostics, allowing appropriate risk-group classification for patients and inter-protocol comparisons. To this end, we set up a quality assessment scheme, that was gradually optimized and updated over the last 20 years, and that now includes participants from around 70 laboratories worldwide. We here describe the design and analysis of our quality assessment scheme. In addition, we here report revised data interpretation guidelines, based on our newly generated data and extensive discussions between experts. The main novelty is the partial re-definition of the \"positive below quantitative range\" category by two new categories, \"MRD low positive, below quantitative range\" and \"MRD of uncertain significance\". The quality assessment program and revised guidelines will ensure reproducible and accurate MRD data for ALL patients. Within the Consortium, similar programs and guidelines have been introduced for other lymphoid diseases (e.g., B-cell lymphoma), for new technological platforms (e.g., digital droplet PCR or Next-Generation Sequencing), and for other patient-specific MRD PCR-based targets (e.g., fusion genes).

Primary mediastinal large B-cell lymphoma (PMBL) is an aggressive B-cell lymphoma that is thought to arise from thymic (medullary) B cells and has unique clinicopathologic and molecular features. In recent years, the understanding of the pathogenesis and treatment of PMBL has been updated to varying degrees, particularly in the area of new drug therapy. In order to improve the diagnosis and treatment of PMBL in China, the Lymphocyte Disease Group of the Chinese Medical Association (CMA) and the Anti-Lymphoma Alliance of the Chinese Society of Clinical Oncology (CSCO) commissioned a group of experts to formulate this consensus.
原发纵隔大B细胞淋巴瘤（primary mediastinal large B-cell lymphoma, PMBL）是一种起源于纵隔的成熟侵袭性大B细胞淋巴瘤，具有独特的临床、病理及分子学特征。近年来，对PMBL发病机制的认识及治疗均有不同程度的更新，特别是新药治疗领域取得了较大进展。为提高我国临床医师对PMBL的诊断及治疗水平，中华医学会血液学分会淋巴细胞疾病学组和中国临床肿瘤学会（CSCO）淋巴瘤专家委员会组织相关专家组，制订了本共识。.

Asplenic patients are at high risk of serious infectious or thrombotic complications, especially when they are not adequately informed of the risk and not closely followed. Ladhani et al. on behalf of the British Society for Haematology propose updated guidelines for managing these patients. Healthcare professionals need to improve infection prevention in patients with hypofunctional or absent spleen through better identification and immunisation using established national registries. Commentary on: Ladhani et al. Prevention and treatment of infection in patients with absent or hypofunctional spleen: A British Society for Haematology guideline. Br J Haematol 2024;204:1672-1686.

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The objective of this guideline, prepared by the ALL subgroup of the Advanced Cell Therapy Sub-Committee of BSBMTCT (British Society of Blood and Marrow Transplantation), is to provide healthcare professionals with practical guidance on the preparation of children and young adults with B-acute lymphoblastic leukaemia from the point of referral to that of admission for CAR T-cell treatment. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) nomenclature was used to evaluate the levels of evidence and to assess the strength of recommendations. The GRADE criteria can be found at http://www.gradeworkinggroup.org.

Management of Metastatic Humeral Disease is based on a systematic review of published studies surrounding the management of metastatic disease, multiple myeloma, and lymphoma limited to the humerus. This guideline contains seven action statements to assist orthopaedic surgeons, orthopaedic oncologists, physicians, and any other qualified healthcare professionals involved in the surgical management of metastatic disease of the humerus. It is also intended to serve as an information resource for decision makers, researchers, and developers of clinical practice guidelines. In addition to providing pragmatic practice recommendations, this guideline also highlights gaps in the literature and informs areas for future research and quality measure development. This guideline has been endorsed by the American Academy of Orthopaedic Surgeons.

Ocular adnexal extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (OAML) is a common malignant tumor that affects the ocular adnexal region. The incidence of OAML is increasing due to the aging population. The tumor invades the ocular adnexal region, which can result in abnormal ocular appearance and function, thereby reducing the quality of life. Currently, there is no standardized diagnosis and management guideline for OAML. To enhance the standardization of diagnosis and management in OAML, a collaborative effort was undertaken by esteemed organizations in China. The Cellular Immune Therapy Committee of China Association for Promotion of Health Science and Technology, the Ocular Tumor Committee of Chinese Medical Doctor Association for Ophthalmologist Branch, the Imaging Medicine Branch of Chinese International Exchange and Promotion Association for Medical and Healthcare, the Tumor and Microecology Professional Committee of China Anti-cancer Association, and the Lymphoma Immunotherapy Committee of Beijing Cancer Prevention Society jointly convened a panel of experts to develop the inaugural \"Chinese Expert Consensus on the Diagnosis and Management of ocular adnexal extranodal marginal zone mucosa-associated lymphoid tissue lymphoma (2023 edition)\"..
眼附属器黏膜相关淋巴组织结外边缘区（MALT）淋巴瘤是发生在眼附属器常见的恶性肿瘤，随着人口老龄化，眼附属器MALT淋巴瘤的发生率呈上升趋势。肿瘤组织侵犯眼附属器局部，容易导致眼部外观和功能的异常，影响患者的生活质量。目前眼附属器MALT淋巴瘤尚无统一的规范化诊疗指南，为了进一步提高眼附属器MALT淋巴瘤的规范化诊断和治疗水平，中国人体健康科技促进会细胞免疫治疗专业委员会、中国医师协会眼科医师分会眼肿瘤专业委员会、中国医疗保健国际交流促进会影像医学分会、中国抗癌协会肿瘤与微生态专业委员会学会和北京癌症防治学会淋巴瘤免疫治疗专业委员会专家联合编写了首个眼附属器MALT淋巴瘤诊治中国专家共识（2023版），以期为临床提供指导。.

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