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Maccio U, Rets AV. Lymphoid aggregates in bone marrow: a diagnostic pitfall. J Clin Pathol 2022; 75:807-814. [PMID: 36150886 DOI: 10.1136/jclinpath-2022-208174] [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: 01/19/2022] [Accepted: 05/09/2022] [Indexed: 11/03/2022]
Abstract
Lymphoid aggregates in bone marrow specimens are a relatively frequent finding that may pose a diagnostic challenge for a pathologist. The distinction between reactive and neoplastic aggregates has significant clinical relevance. Although many testing modalities such as immunohistochemistry, flow cytometry and molecular studies are currently available in clinical laboratories, the appropriate utilisation of these modalities and the awareness of their potential pitfalls are important. When a neoplastic process is ruled out, the significance of benign lymphoid aggregates in bone marrow is often unclear, as they may be associated with a broad spectrum of conditions including infections, autoimmune disorders, medications, or may even be idiopathic.This review focuses on evidence-based criteria that can aid in making the distinction between benign and malignant lymphoid aggregates and discusses the advantages, disadvantages and limits of ancillary tests used for this purpose. Finally, the most common aetiologies of benign lymphoid aggregates and their associations with specific diseases are discussed.
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Affiliation(s)
- Umberto Maccio
- Pathology, University Hospital Zurich, Zürich, Switzerland
| | - Anton V Rets
- Hematopathology, ARUP Laboratories, Salt Lake City, Utah, USA .,Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
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Oliveira M, Laranjeira P, Fortuna M, Bártolo R, Ribeiro A, Santos M, Cortesão E, Marques G, Sarmento‐Ribeiro AB, Vitória H, Ribeiro L, Paiva A. CD43 and CD49d from the B‐Cell Chronic Lymphoproliferative Disorders Diagnostic Panel Are Useful to Detect Erythroid Dysplasia. CYTOMETRY PART B-CLINICAL CYTOMETRY 2019; 96:417-425. [DOI: 10.1002/cyto.b.21792] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 04/23/2019] [Accepted: 05/18/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Melissa Oliveira
- Unidade de Gestão Operacional de Citometria, Serviço de Patologia ClínicaCentro Hospitalar e Universitário de Coimbra Portugal
| | - Paula Laranjeira
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculdade de MedicinaUniversidade de Coimbra Portugal
| | - Manuela Fortuna
- Unidade de Gestão Operacional de Citometria, Serviço de Patologia ClínicaCentro Hospitalar e Universitário de Coimbra Portugal
| | - Rui Bártolo
- Unidade de Gestão Operacional de Citometria, Serviço de Patologia ClínicaCentro Hospitalar e Universitário de Coimbra Portugal
| | - André Ribeiro
- Serviço de Hematologia ClínicaCentro Hospitalar e Universitário de Coimbra Portugal
| | - Mónica Santos
- Serviço de HematologiaCentro Hospitalar Viseu‐Tondela Portugal
| | - Emília Cortesão
- Serviço de Hematologia ClínicaCentro Hospitalar e Universitário de Coimbra Portugal
| | - Gilberto Marques
- Serviço de Patologia ClínicaCentro Hospitalar e Universitário de Coimbra Portugal
| | - Ana Bela Sarmento‐Ribeiro
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculdade de MedicinaUniversidade de Coimbra Portugal
- Serviço de Hematologia ClínicaCentro Hospitalar e Universitário de Coimbra Portugal
| | - Helena Vitória
- Serviço de HematologiaCentro Hospitalar Viseu‐Tondela Portugal
| | - Letícia Ribeiro
- Serviço de Hematologia ClínicaCentro Hospitalar e Universitário de Coimbra Portugal
| | - Artur Paiva
- Unidade de Gestão Operacional de Citometria, Serviço de Patologia ClínicaCentro Hospitalar e Universitário de Coimbra Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculdade de MedicinaUniversidade de Coimbra Portugal
- Instituto Politécnico de Coimbra, ESTESC‐Coimbra Health SchoolCiências Biomédicas Laboratoriais Portugal
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Dimou M, Roumelioti M, Dimitrakopoulou A, Bitsani C, Kotsanti S, Petsa P, Papaioannou P, Kyrtsonis MC, Panayiotidis P. High-grade B-cell lymphoma of the peritoneum as a result of transformation of a CD5-negative monoclonal B lymphocytosis population in a patient with myelodysplastic syndrome treated with 5-azacytidine. Leuk Lymphoma 2017; 59:1264-1267. [PMID: 28901815 DOI: 10.1080/10428194.2017.1375108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Maria Dimou
- a First Propedeutic Department of Internal Medicine, Hematology Unit , National and Kapodistrian University of Athens, Laikon General Hospital , Athens , Greece
| | - Maria Roumelioti
- a First Propedeutic Department of Internal Medicine, Hematology Unit , National and Kapodistrian University of Athens, Laikon General Hospital , Athens , Greece
| | - Aglaia Dimitrakopoulou
- b Department of Immunology and Histocompatibility , Laiko Geniko Nosokomeio , Athens , Greece
| | - Catherin Bitsani
- a First Propedeutic Department of Internal Medicine, Hematology Unit , National and Kapodistrian University of Athens, Laikon General Hospital , Athens , Greece
| | - Sotiria Kotsanti
- a First Propedeutic Department of Internal Medicine, Hematology Unit , National and Kapodistrian University of Athens, Laikon General Hospital , Athens , Greece
| | - Panayiota Petsa
- a First Propedeutic Department of Internal Medicine, Hematology Unit , National and Kapodistrian University of Athens, Laikon General Hospital , Athens , Greece
| | - Paraskevi Papaioannou
- a First Propedeutic Department of Internal Medicine, Hematology Unit , National and Kapodistrian University of Athens, Laikon General Hospital , Athens , Greece
| | - Marie-Christine Kyrtsonis
- a First Propedeutic Department of Internal Medicine, Hematology Unit , National and Kapodistrian University of Athens, Laikon General Hospital , Athens , Greece
| | - Panayiotis Panayiotidis
- a First Propedeutic Department of Internal Medicine, Hematology Unit , National and Kapodistrian University of Athens, Laikon General Hospital , Athens , Greece
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Rodríguez-Caballero A, Henriques A, Criado I, Langerak AW, Matarraz S, López A, Balanzategui A, González M, Nieto WG, Cortesão E, Paiva A, Almeida J, Orfao A. Subjects with chronic lymphocytic leukaemia-like B-cell clones with stereotyped B-cell receptors frequently show MDS-associated phenotypes on myeloid cells. Br J Haematol 2014; 168:258-67. [PMID: 25252186 DOI: 10.1111/bjh.13127] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 08/06/2014] [Indexed: 01/29/2023]
Abstract
An increasing body of evidence suggests the potential occurrence of antigen encounter by the cell of origin in chronic lymphocytic leukaemia (CLL) and CLL-like monoclonal B-cell lymphocytosis (MBL). However, the scenario in which this event might occur remains unknown. In order to gain insight into this scenario we investigated the molecular, cytogenetic and haematological features of 223 CLL-like (n = 84) and CLL (n = 139) clones with stereotyped (n = 32) versus non-stereotyped (n = 191) immunoglobulin heavy chain variable region (IGHV) amino acid sequences. Overall, stereotyped CLL-like MBL and CLL clones showed a unique IGHV profile, associated with higher IGHV1 and lower IGHV3 gene family usage (P = 0·03), longer IGHV complementary determining region 3 (HCDR3) sequences (P = 0·007) and unmutated IGHV (P < 0·001) versus non-stereotyped clones. Whilst the overall size of the stereotyped B-cell clones in peripheral blood did not appear to be associated with the CLL-related cytogenetic profile of B-cells (P > 0·05), it did show a significant association with the presence of myelodysplastic syndrome (MDS)-associated immunophenotypes on peripheral blood neutrophils and/or monocytes (P = 0·01). Altogether our results point to the potential involvement of different selection forces in the expansion of stereotyped vs. non-stereotyped CLL and CLL-like MBL clones, the former being potentially favoured by an underlying altered haematopoiesis.
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Affiliation(s)
- Arancha Rodríguez-Caballero
- Department of Medicine and Cytometry Service, Cancer Research Centre (IBMCC, USAL-CSIC), Institute for Biomedical Research of Salamanca (IBSAL), University of Salamanca (USAL), Salamanca, Spain
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