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Ghafoor B, Masthan SS, Hameed M, Akhtar HH, Khalid A, Ghafoor S, Allah HM, Arshad MM, Iqbal I, Iftikhar A, Husnain M, Anwer F. Waldenström macroglobulinemia: a review of pathogenesis, current treatment, and future prospects. Ann Hematol 2024; 103:1859-1876. [PMID: 37414960 DOI: 10.1007/s00277-023-05345-9] [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: 02/16/2023] [Accepted: 06/26/2023] [Indexed: 07/08/2023]
Abstract
Waldenström macroglobulinemia (WM) is a chronic B-cell lymphoproliferative disorder characterized by lymphoplasmacytic cell overgrowth in the bone marrow and increased secretion of IgM immunoglobulins into the serum. Patients with WM have a variety of clinical outcomes, including long-term survival but inevitable recurrence. Recent advances in disease knowledge, including molecular and genetic principles with the discovery of MYD88 and CXCR4 mutations, have rapidly increased patient-tolerable treatment options. WM patients may benefit from chemotherapy regimens that include rituximab-based regimens, alkylating drugs, proteasome inhibitors, monoclonal antibodies, and drugs targeting Bruton tyrosine kinase inhibitors. In light of these advancements, patients can now receive treatment customized to their specific clinical characteristics, focusing on enhancing the depth and durability of their response while limiting the adverse effects. Despite the rapidly developing therapeutic armament against WM, a lack of high-quality evidence from extensive phase 3 trials remains a significant challenge in the research. We believe clinical outcomes will keep improving when new medicines are introduced while preserving efficacy and minimizing toxicity.
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Affiliation(s)
- Bushra Ghafoor
- Department of Internal Medicine, Capital Health Medical Center, Trenton, NJ, USA
| | | | - Maha Hameed
- Department of Internal Medicine, Florida State University/Sarasota Memorial Hospital, Sarasota, FL, USA
| | | | | | - Sana Ghafoor
- Department of Medicine and Endocrinology, Forth Valley Royal Hospital, Larbert, UK
| | | | | | - Iman Iqbal
- Clements High School, Sugarland, TX, USA
| | - Ahmad Iftikhar
- Department of Medicine, University of Arizona, Tucson, AZ, USA.
| | | | - Faiz Anwer
- Taussig Cancer Center, Cleveland Clinic, Cleveland, OH, USA
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Cook JR, Amador C, Czader M, Duffield A, Goodlad J, Ott G, Xiao W, Dave S, Thakkar D, Thacker E, Dogan A, Wasik M, Nejati R. Transformations of marginal zone lymphomas and lymphoplasmacytic lymphomas: Report from the 2021 SH/EAHP Workshop. Am J Clin Pathol 2023:7143713. [PMID: 37186259 DOI: 10.1093/ajcp/aqad034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/10/2023] [Indexed: 05/17/2023] Open
Abstract
OBJECTIVES To summarize the conclusions of the 2021 Society for Hematopathology/European Association for Haematopathology workshop regarding transformations of marginal zone lymphoma (MZL) and lymphoplasmacytic lymphoma (LPL). METHODS Nineteen cases were submitted to this portion of the workshop. Additional studies were performed in cases with sufficient material. RESULTS Cases included splenic MZL (n = 4), splenic diffuse red pulp small B-cell lymphoma (n = 2), nodal MZL (n = 4), extranodal MZL (n = 1), and LPL (n = 8). The most common transformation was to diffuse large B-cell lymphoma (DLBCL), but others included classic Hodgkin lymphoma, high-grade B-cell lymphomas with MYC and BCL6 rearrangements, plasmablastic lymphoma, and plasma cell leukemia. Two splenic MZLs with transformation to DLBCL contained t(14;19)(q32;q13.3) IGH::BCL3 rearrangements in both samples. Paired sequencing studies in 5 MZLs with transformation to clonally related DLBCL identified a variety of mutations and gene fusions at the time of transformation, including CARD11, IGH::MYC, NOTCH2, P2RY8, TBLX1X1, and IGH::CD274. CONCLUSIONS Marginal zone lymphoma and LPL may undergo a variety of transformation events, most commonly to DLBCL, which is usually, although not always, directly clonally related to the underlying low-grade lymphoma. Multiparameter analysis including broad-based sequencing studies can assist in the diagnosis and classification of these uncommon cases.
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Affiliation(s)
- James R Cook
- Department of Laboratory Medicine, Robert J. Tomisch Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, US
| | - Catalina Amador
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine, Miami, FL, US
| | - Magdalena Czader
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, US
| | - Amy Duffield
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Medical Center, New York, NY, US
| | - John Goodlad
- Department of Pathology, NHS Greater Glasgow and Clyde, Glasgow, UK
| | - German Ott
- Department of Clinical Pathology, Robert-Borsch-Krankenhaus, and Dr. Margarete Fischer-Bosch Institute for Clinical Pharmacology, Stuttgart, Germany
| | - Wenbin Xiao
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Medical Center, New York, NY, US
| | - Sandeep Dave
- Duke University School of Medicine, Durham, NC, US
| | | | | | - Ahmet Dogan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Medical Center, New York, NY, US
| | - Mariusz Wasik
- Department of Pathology, Fox Chase Cancer Center, Philadelphia, PA, US
| | - Reza Nejati
- Department of Pathology, Fox Chase Cancer Center, Philadelphia, PA, US
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Gertz MA. Waldenström macroglobulinemia: 2023 update on diagnosis, risk stratification, and management. Am J Hematol 2023; 98:348-358. [PMID: 36588395 PMCID: PMC10249724 DOI: 10.1002/ajh.26796] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 11/26/2022] [Indexed: 01/03/2023]
Abstract
DISEASE OVERVIEW Waldenström macroglobulinemia (WM) is a lymphoplasmacytic lymphoma with immunoglobulin M (IgM) monoclonal protein. Clinical features include anemia, thrombocytopenia, hepatosplenomegaly, lymphadenopathy, and rarely hyperviscosity. DIAGNOSIS Presence of IgM monoclonal protein associated with ≥10% clonal lymphoplasmacytic cells in bone marrow confirms the diagnosis. The L265P mutation in MYD88 is detectable in more than 90% of patients and is found in most IgM MGUS patients. MYD88 is not required for the diagnosis. RISK STRATIFICATION Age, hemoglobin level, platelet count, β2 microglobulin, LDH, and monoclonal IgM concentrations are characteristics that are predictive of outcomes. RISK-ADAPTED THERAPY Not all patients who fulfill WM criteria require therapy; these patients can be observed until symptoms develop. Rituximab-monotherapy is inferior to regimens that combine it with bendamustine, an alkylating agent, a proteosome inhibitor, or a BTK inhibitor. The preferred Mayo Clinic induction is either rituximab and bendamustine (without rituximab maintenance) or zanubrutinib. MANAGEMENT OF REFRACTORY DISEASE Bortezomib, cyclophosphamide, fludarabine, thalidomide, everolimus, Bruton Tyrosine Kinase inhibitors, carfilzomib, lenalidomide, bendamustine, and venetoclax have all been shown to have activity in relapsed WM. Given WM's natural history, the reduction of therapy toxicity is an important part of treatment selection.
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Affiliation(s)
- Morie A Gertz
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
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Laurent C, Cook JR, Yoshino T, Quintanilla-Martinez L, Jaffe ES. Follicular lymphoma and marginal zone lymphoma: how many diseases? Virchows Arch 2023; 482:149-162. [PMID: 36394631 PMCID: PMC9852150 DOI: 10.1007/s00428-022-03432-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/04/2022] [Accepted: 10/15/2022] [Indexed: 11/18/2022]
Abstract
Follicular lymphoma (FL) and marginal zone lymphoma (MZL) are indolent mature B-cell neoplasms with variable clinical presentation and distinct histopathologic features. Recent advances in the biology and molecular characteristics of these lymphomas have further expanded our understanding of the heterogeneous nature of these lymphomas, with increasing recognition of specific disease entities within the broader categories of FL and MZL. Here, we discuss the conclusions of the 2022 International Consensus Classification of Mature Lymphoid Neoplasms (2022 ICC) dealing with FL, and review differences with the proposed WHO 5th Edition classification. We review issues related to grading and alternative forms of FL especially those lacking the genetic hallmark of FL, the t(14;18) chromosomal alteration. Among them, t(14;18)-negative CD23+ follicle center lymphoma has been proposed by the 2022 ICC as a provisional entity. Other follicle center-derived lymphomas such as pediatric-type follicular lymphoma, testicular follicular lymphoma, primary cutaneous follicle center lymphoma, and large B-cell lymphoma with IRF4 rearrangement are considered distinct entities separate from conventional FL. Importantly, large B-cell lymphoma with IRF4 rearrangement introduced as a provisional entity in the WHO 2017 is upgraded to a definite entity in the 2022 ICC. We also discuss diagnostic strategies for recognition of MZLs including splenic MZL, extranodal MZL (MALT lymphoma), and primary nodal MZL. The importance of molecular studies in the distinction among marginal zone lymphoma subtypes is emphasized, as well as their value in the differential diagnosis with other B-cell lymphomas.
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Affiliation(s)
- Camille Laurent
- Department of Pathology, Toulouse University Hospital Center, Cancer Institute University of Toulouse-Oncopole, Toulouse, France
| | - James R. Cook
- Department of Laboratory Medicine, Robert J. Tomsich Institute of Pathology and Laboratory Medicine, Cleveland Clinic, Cleveland, OH USA
| | - Tadashi Yoshino
- Department of Pathology, Graduate School of Medicine Dentistry and Pharmaceutical Science, Okayama University, Okayama, Japan
| | - Leticia Quintanilla-Martinez
- Institute of Pathology and Neuropathology, Eberhard Karls Univesity of Tübingen and Comprehensive Cancer Center, University Hospital Tübingen, Tuebingen, Germany
| | - Elaine S. Jaffe
- National Cancer Institute, National Institutes of Health, Bethesda, MD USA
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Lopez G, Han K, Magaki SD, Song SX, Salamon N, Kahlon KS, Keselman I, Bari AA, Vinters HV. Low‐grade
B‐cell lymphoma of the central nervous system with plasmacytic differentiation and amyloid deposition. Neuropathology 2022. [PMID: 36451532 DOI: 10.1111/neup.12886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/08/2022] [Accepted: 11/11/2022] [Indexed: 12/03/2022]
Abstract
A 65-year-old woman with a resolved history of epilepsy due to a motor vehicle accident and hippocampal sclerosis presented with recurrent de novo seizures. Brain imaging demonstrated enhancement in the left parieto-occipital lobe. At histopathological examination, the lesion displayed a diffuse lymphoid infiltrate comprised of small atypical lymphocytes, plasmacytoid lymphocytes, and scattered plasma cells with amyloid deposition. Pathology workup demonstrated a monotypic B-cell phenotype of the lymphoid infiltrate, expressing lambda light chain restriction and plasmacytic differentiation without MYD88 mutations. The patient had no systemic evidence of lymphoma, plasma cell dyscrasia, or amyloidosis. A diagnosis of low-grade B-cell lymphoma of the central nervous system with plasmacytic differentiation and amyloid deposition was made.
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Affiliation(s)
- Gianluca Lopez
- University of Milan Milan Italy
- Neuropathology, Department of Pathology and Laboratory Medicine, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California Los Angeles California USA
| | - Karam Han
- Neuropathology, Department of Pathology and Laboratory Medicine, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California Los Angeles California USA
| | - Shino D. Magaki
- Neuropathology, Department of Pathology and Laboratory Medicine, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California Los Angeles California USA
| | - Sophie X. Song
- Hematopathology, Department of Pathology and Laboratory Medicine, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California Los Angeles California USA
| | - Noriko Salamon
- Department of Radiology, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California Los Angeles California USA
| | - Kanwarpal S. Kahlon
- Division of Hematology‐Oncology, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California Los Angeles California USA
| | - Inna Keselman
- Department of Neurology, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California, Los Angeles Los Angeles California USA
| | - Ausaf A. Bari
- Department of Neurosurgery, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California Los Angeles California USA
| | - Harry V. Vinters
- Neuropathology, Department of Pathology and Laboratory Medicine, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California Los Angeles California USA
- Department of Neurology, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine University of California, Los Angeles Los Angeles California USA
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Hong MK, Han AY, Shiba TL. A Rare Case of Laryngeal Non-IgM Lymphoplasmacytic Lymphoma. Cureus 2022; 14:e29136. [PMID: 36159343 PMCID: PMC9495297 DOI: 10.7759/cureus.29136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
Laryngeal lymphoplasmacytic lymphoma has been previously reported only a handful of times in the literature. It can be difficult to diagnose without significant histologic workup and proper methodology. Here, we demonstrate the first known case of laryngeal lymphoplasmacytic lymphoma with non-immunoglobulin M (IgM) features. In this case report, a 79-year-old female with seropositive rheumatoid arthritis presented with five months of dysphonia and dyspnea on exertion. Lab studies revealed high levels of serum IgA and IgG. Flexible laryngoscopy and computed tomography of the neck showed a left supraglottic submucosal mass, which was surgically excised with a carbon dioxide laser. The histology of the mass confirmed the diagnosis of lymphoplasmacytic lymphoma. The patient was treated with 30.6 Gy of radiation therapy and eight cycles of rituximab with successful remission of her lymphoma and no evidence of disease recurrence six months after treatment completion. Lymphoplasmacytic lymphoma without corresponding IgM gammopathy is unusual and has been shown to have a higher frequency of extramedullary involvement. This is the first known manifestation of non-IgM lymphoplasmacytic lymphoma in the larynx.
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Hu X, Wang H, Yuan D, Qu H, Li Y, Wang N, Wang X, Liu X, Xu H, Zhang Y, Wang X. An Extended Prognostic Index of the ISSWM Score Based on Thyroid Complications in Waldenström Macroglobulinemia/Lymphoplasmacytoid Lymphoma. Front Oncol 2022; 12:870258. [PMID: 35646661 PMCID: PMC9136013 DOI: 10.3389/fonc.2022.870258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 04/04/2022] [Indexed: 12/23/2022] Open
Abstract
Waldenström macroglobulinemia/lymphoplasmacytoid lymphoma (WM/LPL) is a rare lymphoproliferative neoplasm characterized by clonally related lymphocytes, lymphoplasmacytic cells, and plasma cell proliferation. WM/LPL patients commonly present with elevated immunoglobulin, predominantly immunoglobulin M (IgM). Previous studies reported that thyroid dysfunction was associated with the development and progression of solid tumors. However, only limited information is available on the correlation between thyroid complications and lymphoid malignancies. The aim of our study was to explore the prognostic significance of thyroid complications in WM/LPL. Herein, 13.3% of WM/LPL patients were diagnosed with thyroid complications, which were significantly associated with unfavorable progression-free survival (PFS), overall survival (OS), and adverse treatment response. Co-existing thyroid disease was significantly related to alleviated serum IgM levels, providing an answer to practical problems. Furthermore, the presence of thyroid complications was identified as an independent prognostic indicator for PFS in WM/LPL. Incorporating the ISSWM score with thyroid complications was superior to ISSWM alone in risk stratification and prognostic prediction. Furthermore, subgroup analyses of WM/LPL patients revealed that subclinical hypothyroidism predicted undesirable outcomes at the early stage. These results were also supported by independent microarray dataset analyses. In conclusion, the primary strength of this study is that it provides robust real-world evidence on the prognostic role of thyroid complications, highlighting further clinical concerns in the management of WM/LPL patients.
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Affiliation(s)
- Xinting Hu
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- School of Medicine, Shandong University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
| | - Hua Wang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
| | - Dai Yuan
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- School of Medicine, Shandong University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Huiting Qu
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- School of Medicine, Shandong University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ying Li
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- School of Medicine, Shandong University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Na Wang
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- School of Medicine, Shandong University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xianghua Wang
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- School of Medicine, Shandong University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xin Liu
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- School of Medicine, Shandong University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Hongzhi Xu
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- School of Medicine, Shandong University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ya Zhang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
- *Correspondence: Xin Wang, ; Ya Zhang,
| | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- School of Medicine, Shandong University, Jinan, China
- Shandong Provincial Engineering Research Center of Lymphoma, Jinan, China
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
- *Correspondence: Xin Wang, ; Ya Zhang,
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Bilateral auricular lymphoplasmacytic lymphoma: barely mere coincidence. Leuk Res Rep 2021; 16:100285. [PMID: 34917468 PMCID: PMC8666705 DOI: 10.1016/j.lrr.2021.100285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 11/17/2021] [Accepted: 12/02/2021] [Indexed: 11/22/2022] Open
Abstract
We describe the first case of LPL simultaneously involving both auricles. Affected ears were the first manifestation of the disease that led to the diagnosis. The lack of appreciable systemic disease allowed sparing the patient from immunochemotherapy. Radiation therapy was used as a single modality and secured a stable remission. A putative pathogenesis of the paired auricular lymphoma is discussed and a literature review presented. While the role of genetic predisposition in our patient was uncertain, we postulate that symmetric ear lymphoma could have been caused by a combined effect of the homing of malignant lymphocytes whose localized growth was triggered by the hazardous environmental exposure.
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Milner J, Gonçalves F, Gonçalves L. A pacemaker pocket mass has many faces. J Cardiol Cases 2021; 24:244-246. [PMID: 34868407 DOI: 10.1016/j.jccase.2021.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/06/2021] [Accepted: 04/17/2021] [Indexed: 01/20/2023] Open
Abstract
The development of malignant neoplasms over the site of pacemaker implantation is a rare event, with a limited number of published case reports. We report the case of a 78-year-old male who presented with discomfort and pocket mass expansion, reportedly following trauma. Due to initial presumption of a simple hematoma, dissection and drainage were performed without tissue collection for histology. Later presentation with an exophytic ulcerated mass led to biopsy and identification of a lymphoplasmacytic lymphoma. To the best of our knowledge this is the first reported case of a cutaneous lymphoplasmacytic lymphoma presenting as a pacemaker pocket mass, and underlines the importance of systematic pacemaker inspection, of adequate histological characterization and of a high degree of clinical suspicion for the identification malignancy in this context. <Learning objective: We report the first case of a lymphoplasmacytic lymphoma presenting primarily as a pacemaker pocket mass. Lymphoplasmacytic lymphoma is a rare and indolent subtype of Non-Hodgkin lymphoma that may present with cutaneous manifestations. Due to the extreme rarity of malignant neoplasms presenting as pacemaker pocket masses, a high degree is clinical suspicion is required, and tissue histology plays a key role in the diagnosis.>.
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Affiliation(s)
- James Milner
- Cardiology Department, Centro Hospitalar e Universitário de Coimbra
| | | | - Lino Gonçalves
- Cardiology Department, Centro Hospitalar e Universitário de Coimbra.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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Szumera-Ciećkiewicz A, Rymkiewicz G, Sokół K, Paszkiewicz-Kozik E, Borysiuk A, Poleszczuk J, Bachnio K, Bystydzienski Z, Woroniecka R, Grygalewicz B, Kotarska M, Stańczak M, Owczarek D, Pytlak B, Prochorec-Sobieszek M, Walewski J. Significance of CD10 protein expression in the diagnostics of follicular lymphoma: A comparison of conventional immunohistochemistry with flow cytometry supported by the establishment of BCL2 and BCL6 rearrangements. Int J Lab Hematol 2020; 42:453-463. [PMID: 32364682 DOI: 10.1111/ijlh.13222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/12/2020] [Accepted: 04/09/2020] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Histopathological examination and immunohistochemistry (IHC) with a crucial role of CD10 expression remain a standard diagnostic tool in follicular lymphoma (FL). The results of IHC CD10 detection with different primary antibodies are not fully reproducible, but some reports show that flow cytometry (FCM) can be a reliable method of CD10 identification. METHODS The aim of the study was to compare results of CD10 expression in FL by IHC and FCM including immunophenotypic features in the context of the BCL2 and BCL6 alterations. RESULTS Out of 76 histopathologically diagnosed FL, a group of 25 cases had simultaneously FCM. Immunohistochemically 77.6% of cases were CD10-positive with comparable and reproducible results to FCM. Differences between the FCM expression of CD5/CD10/CD11c/CD25/CD43 and BCL2 overexpression (BCL2(+)higher ) correlated with the BCL2 and BCL6 rearrangements (R) status. Lack of CD10 expression corresponded with the absence of BCL2R and higher MUM1 expression by IHC results but had no clinical impact on the long-time outcomes. CONCLUSIONS Immunohistochemistry staining is a comparable method to FCM assessment in the evaluation of CD10 expression and diagnosis of FL. Fine-needle aspiration biopsy/FCM (FNAB/FCM) could be a useful tool for verifying FL diagnosis and CD10 detection. Despite its heterogeneity, FL has a characteristic immunophenotype. BCL2R and BCL6R FL cases differ mainly in levels of BCL2 and CD10 with CD43 co-expression; BCL2(+)higher by FCM correlates with BCL2R. Moreover, FNAB plays an important role in material provision for supportive karyotyping and BCL2R, BCL6R assessed by FISH.
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Affiliation(s)
- Anna Szumera-Ciećkiewicz
- Pathology Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.,Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Grzegorz Rymkiewicz
- Pathology Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.,Flow Cytometry Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Kamil Sokół
- Pathology Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.,Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Ewa Paszkiewicz-Kozik
- Department of Lymphoid Malignancies, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Anita Borysiuk
- Flow Cytometry Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Jan Poleszczuk
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland
| | - Katarzyna Bachnio
- Flow Cytometry Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Zbigniew Bystydzienski
- Flow Cytometry Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Renata Woroniecka
- Cytogenetics Laboratory, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Beata Grygalewicz
- Cytogenetics Laboratory, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Martyna Kotarska
- Department of Lymphoid Malignancies, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Monika Stańczak
- Pathology Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.,Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Daria Owczarek
- Pathology Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.,Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Beata Pytlak
- Pathology Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.,Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Monika Prochorec-Sobieszek
- Pathology Laboratory, Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.,Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Jan Walewski
- Department of Lymphoid Malignancies, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
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Hamid AB, Petreaca RC. Secondary Resistant Mutations to Small Molecule Inhibitors in Cancer Cells. Cancers (Basel) 2020; 12:cancers12040927. [PMID: 32283832 PMCID: PMC7226513 DOI: 10.3390/cancers12040927] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/05/2020] [Accepted: 04/07/2020] [Indexed: 12/14/2022] Open
Abstract
Secondary resistant mutations in cancer cells arise in response to certain small molecule inhibitors. These mutations inevitably cause recurrence and often progression to a more aggressive form. Resistant mutations may manifest in various forms. For example, some mutations decrease or abrogate the affinity of the drug for the protein. Others restore the function of the enzyme even in the presence of the inhibitor. In some cases, resistance is acquired through activation of a parallel pathway which bypasses the function of the drug targeted pathway. The Catalogue of Somatic Mutations in Cancer (COSMIC) produced a compendium of resistant mutations to small molecule inhibitors reported in the literature. Here, we build on these data and provide a comprehensive review of resistant mutations in cancers. We also discuss mechanistic parallels of resistance.
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