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Kahraman A, Dirilenoğlu F, Güzeliş İ, Çetinoğlu K. Intraoperative pathologic diagnosis of central nervous system lymphomas: A comparison of frozen and permanent section diagnoses, and the significance of preoperative imaging. Ann Diagn Pathol 2024; 69:152246. [PMID: 38113550 DOI: 10.1016/j.anndiagpath.2023.152246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/09/2023] [Accepted: 12/10/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND Central nervous system (CNS) lymphomas, either primary or secondary in origin, are rare malignant tumors affecting the brain, spinal cord, or leptomeninges. Diagnosis of CNS lymphomas is complicated by their diverse clinical presentations, radiological features, and histopathological characteristics. Although frozen section (FS) analysis is commonly employed for various CNS tumors, its role and accuracy in CNS lymphoma diagnosis are less explored. In this study, we conducted a comparative analysis to assess the impact of knowledge of preoperative imaging on enhancing the accuracy of FS diagnosis in CNS lymphomas. METHODS Data collection involved a retrospective review of CNS lymphoma patients from January 2009 to August 2021. Patients who underwent intraoperative consultation were included, excluding those with prior cortisone treatment. The dataset incorporated patient demographics, classification as primary or secondary lymphoma, radiological preliminary diagnoses, FS diagnosis, and permanent section diagnosis. We employed various archived materials, including FSs, touch imprint slides, crush cytology slides, H&E-stained sections, and immunohistochemical stains, and re-evaluated all slides for diagnostic validation. RESULTS Our study included 25 patients, of whom 60 % were female and had a mean age of 56.5 years. Preoperative radiology data were available for 80 % of cases, with preliminary diagnoses commonly including lymphoma and/or metastasis. Intraoperative consultation results indicated lymphoma in 18 (72 %) patients, with discordance observed in 28 % of cases when compared to permanent section diagnoses. Most permanent section diagnoses were diffuse large B-cell lymphomas (92 %), with the remainder being T-cell non-Hodgkin lymphoma (4 %) and follicular lymphoma (4 %). Intraoperative misdiagnoses were significantly associated with the absence of knowledge of preoperative imaging. CONCLUSION Our study demonstrates the reliability of FS diagnosis for CNS lymphomas during surgery, with a favorable complete concordance rate of 72 % when compared to permanent diagnoses. Importantly, lack of knowledge of preoperative imaging significantly impaired diagnostic accuracy in FS, emphasizing the need for close collaboration between pathologists and radiologists.
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Affiliation(s)
- Aslı Kahraman
- Department of Pathology, Ataturk Training and Research Hospital, Izmir Katip Celebi University, Türkiye
| | - Fikret Dirilenoğlu
- Department of Pathology, Faculty of Medicine, Near East University, Nicosia, Cyprus.
| | - İsmail Güzeliş
- Department of Pathology, Ataturk Training and Research Hospital, Izmir Katip Celebi University, Türkiye
| | - Kenan Çetinoğlu
- Department of Radiology, Ataturk Training and Research Hospital, Izmir Katip Celebi University, Türkiye
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Arabyan G, Hambartzhumian R, Lim AM, Quizon M, Oberndorf J, Ghazaleh JA, Sharma D. An Unusual Case of Delayed-Onset Rituximab-Induced Ventricular Tachycardia: A Case Report. J Investig Med High Impact Case Rep 2024; 12:23247096241255813. [PMID: 38767122 PMCID: PMC11107307 DOI: 10.1177/23247096241255813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/22/2024] [Accepted: 05/01/2024] [Indexed: 05/22/2024] Open
Abstract
Cardiac disease associated with cancer treatment is a common adverse effect that is well-treated with appropriate monitoring. However, some cardiac adverse effects with cancer treatment are not well-understood, in particular rituximab-associated ventricular tachycardia. We present the fourth case of rituximab-associated ventricular tachycardia in a patient who is rituximab-naive and who does not have known cardiac disease history. This patient developed non-sustained polymorphic ventricular tachycardia 14 hours after rituximab was started and 6 hours after it was stopped, and after extensive monitoring including a 30-day event monitor, did not develop further significant runs of ventricular tachycardia.
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Bobillo S, Wilson MR, Cwynarski K. Controversies in central nervous system prophylaxis of high-risk diffuse large B-cell lymphoma. Curr Opin Oncol 2023; 35:382-388. [PMID: 37551947 DOI: 10.1097/cco.0000000000000973] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
PURPOSE OF REVIEW Central nervous system (CNS) relapse in patients with diffuse large B-cell lymphoma (DLBCL) is an uncommon but devastating complication with an overall survival of less than 6 months. This article will review the recent updates on CNS prophylaxis including new potential advances in the identification of high-risk patients. RECENT FINDINGS The identification of patients at a high risk of CNS relapse is based on clinical and biological features has improved over recent years; however, the of different CNS prophylaxis strategies including intrathecal chemotherapy and high-dose methotrexate have been recently questioned in several large retrospective studies. The analysis of cell-free circulating tumor DNA (ctDNA) in the cerebrospinal fluid has been shown to identify patients with a high risk of CNS involvement and work is ongoing to identify how this can be used as a prognostic biomarker. SUMMARY Recent clinical retrospective data have questioned the effectiveness of intrathecal and high-dose methotrexate in the prevention of CNS relapse in high-risk DLBCL patients. The role of more sensitive methods to detect CNS involvement and the benefit of novel therapies in CNS relapse prevention are currently under evaluation.
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Affiliation(s)
- Sabela Bobillo
- Department of Haematology, Vall d'Hebron Institute of Oncology, University Hospital Vall d'Hebron, Barcelona, Spain
| | - Matthew R Wilson
- Department of Haematology, Beatson West of Scotland Cancer Centre, Glasgow
| | - Kate Cwynarski
- Department of Haematology, University College London Hospital, London, UK
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Iriyama C, Murate K, Iba S, Okamoto A, Goto N, Yamamoto H, Kato T, Mihara K, Miyama T, Hattori K, Kajiya R, Okamoto M, Mizutani Y, Yamada S, Tsukamoto T, Hirose Y, Mutoh T, Watanabe H, Tomita A. Utility of cerebrospinal fluid liquid biopsy in distinguishing CNS lymphoma from cerebrospinal infectious/demyelinating diseases. Cancer Med 2023; 12:16972-16984. [PMID: 37501501 PMCID: PMC10501233 DOI: 10.1002/cam4.6329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/12/2023] [Accepted: 07/01/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Distinguishing between central nervous system lymphoma (CNSL) and CNS infectious and/or demyelinating diseases, although clinically important, is sometimes difficult even using imaging strategies and conventional cerebrospinal fluid (CSF) analyses. To determine whether detection of genetic mutations enables differentiation between these diseases and the early detection of CNSL, we performed mutational analysis using CSF liquid biopsy technique. METHODS In this study, we extracted cell-free DNA from the CSF (CSF-cfDNA) of CNSL (N = 10), CNS infectious disease (N = 10), and demyelinating disease (N = 10) patients, and performed quantitative mutational analysis by droplet-digital PCR. Conventional analyses were also performed using peripheral blood and CSF to confirm the characteristics of each disease. RESULTS Blood hemoglobin and albumin levels were significantly lower in CNSL than CNS infectious and demyelinating diseases, CSF cell counts were significantly higher in infectious diseases than CNSL and demyelinating diseases, and CSF-cfDNA concentrations were significantly higher in infectious diseases than CNSL and demyelinating diseases. Mutation analysis using CSF-cfDNA detected MYD88L265P and CD79Y196 mutations in 60% of CNSLs each, with either mutation detected in 80% of cases. Mutual existence of both mutations was identified in 40% of cases. These mutations were not detected in either infectious or demyelinating diseases, and the sensitivity and specificity of detecting either MYD88/CD79B mutations in CNSL were 80% and 100%, respectively. In the four cases biopsied, the median time from collecting CSF with the detected mutations to definitive diagnosis by conventional methods was 22.5 days (range, 18-93 days). CONCLUSIONS These results suggest that mutation analysis using CSF-cfDNA might be useful for differentiating CNSL from CNS infectious/demyelinating diseases and for early detection of CNSL, even in cases where brain biopsy is difficult to perform.
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Affiliation(s)
- Chisako Iriyama
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
| | - Kenichiro Murate
- Department of NeurologyFujita Health University School of MedicineToyoakeJapan
| | - Sachiko Iba
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
| | - Akinao Okamoto
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
| | - Naoe Goto
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
| | - Hideyuki Yamamoto
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
| | - Toshiharu Kato
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
| | - Keichiro Mihara
- International Center for Cell and Gene TherapyFujita Health UniversityToyoakeJapan
| | - Takahiko Miyama
- International Center for Cell and Gene TherapyFujita Health UniversityToyoakeJapan
| | - Keiko Hattori
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
| | - Ryoko Kajiya
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
| | - Masataka Okamoto
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
- Department of Hematology and OncologyFujita Health University Okazaki Medical CenterOkazakiJapan
| | - Yasuaki Mizutani
- Department of NeurologyFujita Health University School of MedicineToyoakeJapan
| | - Seiji Yamada
- Department of PathologyFujita Health University School of MedicineToyoakeJapan
| | - Tetsuya Tsukamoto
- Department of PathologyFujita Health University School of MedicineToyoakeJapan
| | - Yuichi Hirose
- Department of NeurosurgeryFujita Health University School of MedicineToyoakeJapan
| | - Tatsuro Mutoh
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
| | - Hirohisa Watanabe
- Department of NeurologyFujita Health University School of MedicineToyoakeJapan
| | - Akihiro Tomita
- Department of HematologyFujita Health University School of MedicineToyoakeJapan
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Chan JY, Somasundaram N, Grigoropoulos N, Lim F, Poon ML, Jeyasekharan A, Yeoh KW, Tan D, Lenz G, Ong CK, Lim ST. Evolving therapeutic landscape of diffuse large B-cell lymphoma: challenges and aspirations. Discov Oncol 2023; 14:132. [PMID: 37466782 PMCID: PMC10361453 DOI: 10.1007/s12672-023-00754-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 07/13/2023] [Indexed: 07/20/2023] Open
Abstract
Diffuse large B-cell lymphoma (DLBCL) represents the commonest subtype of non-Hodgkin lymphoma and encompasses a group of diverse disease entities, each harboring unique molecular and clinico-pathological features. The understanding of the molecular landscape of DLBCL has improved significantly over the past decade, highlighting unique genomic subtypes with implications on targeted therapy. At the same time, several new treatment modalities have been recently approved both in the frontline and relapsed settings, ending a dearth of negative clinical trials that plagued the past decade. Despite that, in the real-world setting, issues like drug accessibility, reimbursement policies, physician and patient preference, as well as questions regarding optimal sequencing of treatment options present difficulties and challenges in day-to-day oncology practice. Here, we review the recent advances in the therapeutic armamentarium of DLBCL and discuss implications on the practice landscape, with a particular emphasis on the context of the healthcare system in Singapore.
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Affiliation(s)
- Jason Yongsheng Chan
- Division of Medical Oncology, National Cancer Centre Singapore, 30 Hospital Blvd, Singapore, 168583, Singapore.
- Cancer and Stem Cell Biology, Duke-NUS Medical School, National Cancer Centre Singapore, 8 College Road, Singapore, 169857, Singapore.
| | - Nagavalli Somasundaram
- Division of Medical Oncology, National Cancer Centre Singapore, 30 Hospital Blvd, Singapore, 168583, Singapore
- Cancer and Stem Cell Biology, Duke-NUS Medical School, National Cancer Centre Singapore, 8 College Road, Singapore, 169857, Singapore
| | - Nicholas Grigoropoulos
- Cancer and Stem Cell Biology, Duke-NUS Medical School, National Cancer Centre Singapore, 8 College Road, Singapore, 169857, Singapore
- Department of Haematology, Singapore General Hospital, Singapore, Singapore
| | - Francesca Lim
- Cancer and Stem Cell Biology, Duke-NUS Medical School, National Cancer Centre Singapore, 8 College Road, Singapore, 169857, Singapore
- Department of Haematology, Singapore General Hospital, Singapore, Singapore
| | - Michelle Limei Poon
- Department of Haematology, National University Cancer Institute, Singapore, Singapore
| | - Anand Jeyasekharan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
- Department of Haematology-Oncology, National University Cancer Institute, Singapore, Singapore
| | - Kheng Wei Yeoh
- Cancer and Stem Cell Biology, Duke-NUS Medical School, National Cancer Centre Singapore, 8 College Road, Singapore, 169857, Singapore
- Division of Radiation Oncology, National University Cancer Institute, Singapore, Singapore
| | - Daryl Tan
- Mount Elizabeth Novena Hospital, Singapore, Singapore
| | - Georg Lenz
- Department of Medicine A, Department of Hematology, Oncology and Pneumology, University Hospital Münster, Münster, Germany
| | - Choon Kiat Ong
- Cancer and Stem Cell Biology, Duke-NUS Medical School, National Cancer Centre Singapore, 8 College Road, Singapore, 169857, Singapore.
- Lymphoma Genomic Translational Research Laboratory, Cellular and Molecular Research, National Cancer Centre Singapore, Singapore, Singapore.
| | - Soon Thye Lim
- Division of Medical Oncology, National Cancer Centre Singapore, 30 Hospital Blvd, Singapore, 168583, Singapore.
- Cancer and Stem Cell Biology, Duke-NUS Medical School, National Cancer Centre Singapore, 8 College Road, Singapore, 169857, Singapore.
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