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Ehinger M, Béné MC. Morphology and multiparameter flow cytometry combined for integrated lymphoma diagnosis on small volume samples: possibilities and limitations. Virchows Arch 2024:10.1007/s00428-024-03819-3. [PMID: 38805049 DOI: 10.1007/s00428-024-03819-3] [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: 01/10/2024] [Revised: 04/18/2024] [Accepted: 05/02/2024] [Indexed: 05/29/2024]
Abstract
The diagnosis of lymphoma relies mainly on clinical examination and laboratory explorations. Among the latter, morphological and immunohistochemical analysis of a tissue biopsy are the cornerstones for proper identification and classification of the disease. In lymphoma with blood and/or bone marrow involvement, multiparameter flow cytometry is useful. This technique can also be applied to fresh cells released from a biopsy sample. For full comprehension of lymphomas, surgical biopsies are best and indeed recommended by the hematopathological community. Currently, however, there is a global trend towards less invasive procedures, resulting in smaller samples such as core needle biopsies or fine needle aspirations which can make the diagnosis quite challenging. In this review, the possibilities and limitations to make an accurate lymphoma diagnosis on such small volume material are presented. After recalling the major steps of lymphoma diagnosis, the respective value of histology, cytology, and flow cytometry is discussed, including handling of small specimens. The benefits of an integrated approach are then evoked, followed by discussion about which attitude to adopt in different contexts. Perhaps contrary to the prevailing view among many pathologists, a full diagnosis on small volume material, combined with relevant ancillary techniques, is often possible and indeed supported by recent literature. A glimpse at future evolutions, notably the merit of artificial intelligence tools, is finally provided. All in all, this document aims at providing pathologists with an overview of diagnostic possibilities in lymphoma patients when confronted with small volume material such as core needle biopsies or fine needle aspirations.
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Affiliation(s)
- Mats Ehinger
- Division of Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.
- Department of Clinical Genetics, Pathology and Molecular Diagnostics, Office for Medical Services, Region Skåne, Lund, Sweden.
| | - Marie C Béné
- Faculty of Medicine, Nantes University, Nantes, France
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Peng D, Kodituwakku A, Le S, Smith SABC, Qiu MR, Earls P, Field AS, Parker AJC, Law M, Milliken ST, Sewell WA. Factors determining whether diffuse large B-cell lymphoma samples are detected by flow cytometry. Int J Lab Hematol 2023; 45:927-934. [PMID: 37632200 DOI: 10.1111/ijlh.14158] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023]
Abstract
INTRODUCTION Flow cytometry (FCM) is widely used in the diagnosis of mature B-cell neoplasms (MBN), and FCM data are usually consistent with morphological findings. However, diffuse large B-cell lymphoma (DLBCL), a common MBN, is sometimes not detected by FCM. This study aimed to explore factors that increase the likelihood of failure to detect DLBCL by FCM. METHODS Cases with a final diagnosis of DLBCL that were analysed by eight-colour FCM were retrospectively collated. Clinical, FCM, histopathological and genetic data were compared between cases detected and cases not detected by FCM. RESULTS DLBCL cases from 135 different patients were analysed, of which 22 (16%) were not detected by FCM. In samples not detected by flow cytometry, lymphocytes were a lower percentage of total events (p = 0.02), and T cells were a higher percentage of total lymphocytes (p = 0.01). Cases with high MYC protein expression on immunohistochemistry were less likely to be missed by FCM (p = 0.011). Detection of DLBCL was not different between germinal centre B-cell (GCB) and non-GCB subtypes, not significantly affected by the presence of necrosis or fibrosis, and not significantly different between biopsy specimens compared to fine-needle aspirates, or between samples from nodal compared to extranodal tissue. CONCLUSION The study identifies several factors which affect the likelihood of DLBCL being missed by FCM. Even with eight-colour analysis, FCM fails to detect numerous cases of DLBCL.
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Affiliation(s)
- David Peng
- St Vincent's Healthcare Clinical Campus, University of NSW, Sydney, Australia
| | | | - Steven Le
- St Vincent's Pathology, St Vincent's Hospital, Sydney, Australia
| | | | - Min R Qiu
- St Vincent's Healthcare Clinical Campus, University of NSW, Sydney, Australia
- St Vincent's Pathology, St Vincent's Hospital, Sydney, Australia
| | - Peter Earls
- St Vincent's Pathology, St Vincent's Hospital, Sydney, Australia
| | - Andrew S Field
- St Vincent's Healthcare Clinical Campus, University of NSW, Sydney, Australia
- St Vincent's Pathology, St Vincent's Hospital, Sydney, Australia
| | | | - Matthew Law
- Kirby Institute, University of NSW, Sydney, Australia
| | - Samuel T Milliken
- St Vincent's Healthcare Clinical Campus, University of NSW, Sydney, Australia
- St Vincent's Pathology, St Vincent's Hospital, Sydney, Australia
| | - William A Sewell
- St Vincent's Healthcare Clinical Campus, University of NSW, Sydney, Australia
- St Vincent's Pathology, St Vincent's Hospital, Sydney, Australia
- Precision Immunology Program, Garvan Institute of Medical Research, Sydney, Australia
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Seki A, Chute DJ. Lung and Mediastinal Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration in Young Adults. Acta Cytol 2022; 66:379-388. [PMID: 35390805 DOI: 10.1159/000523880] [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: 12/09/2021] [Accepted: 02/16/2022] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is used to investigate pulmonary nodules, mediastinal lymphadenopathy, and mediastinal masses in both malignant and nonmalignant etiologies. EBUS-TBNA is most commonly used in the diagnosis and staging of patients with non-small-cell lung cancer in the middle-age and elderly populations. As lung cancer is uncommon in young adults, it is assumed that there are a distinct disease population and clinical background in young adults who undergo EBUS-TBNA. However, this population has not been well investigated. METHODS We identified all EBUS-TBNA cases in young adults (aged 18-39 years) between January 1, 2008, and December 31, 2018, at our institution. Cytology diagnoses were correlated with the concurrent/subsequent histologic diagnosis and clinical decisions. A final patient classification was created based on the worst cytologic or histologic diagnosis (benign, low-grade, or malignant), with the exception of atypical cytology with subsequent long clinical follow-up with no evidence of malignancy, who were considered benign. All discordant cases and positive/suspicious cases with available slides were rereviewed together by the authors to confirm the diagnosis. RESULTS In total, 257 EBUS-TBNA procedures were performed in 249 young adults (mean age of 31.2 years). The majority of indications were lymphadenopathy and lung nodule/mass. Final cytologic interpretations included 214 (83%) benign, 14 (5%) atypical, 5 (2%) low-grade neoplasm (carcinoid tumor), and 15 (6%) malignant cases. The final patient classification was 213 (86%) benign, 6 (2%) low-grade, and 30 (12%) malignant. Discordant results were found in 24 cases, most frequently due to sampling error (50%). Of 213 benign cases, 58% had granulomatous disease, with sarcoidosis being the most common, followed by histoplasmosis. Of 30 cases with a final malignant classification, metastatic tumor was the most common (n = 12, 4.8%), followed by primary lung tumor (n = 11, 4.4%) and lymphoma (n = 7, 2.8%). There was a variety of malignancies among primary lung cancer, including adenocarcinoma (n = 5), squamous-cell carcinoma (n = 3), inflammatory myofibroblastic tumor (n = 2), and epithelioid hemangioendothelioma (n = 1). CONCLUSION In young adults, EBUS-TBNA was most frequently performed to evaluate lymphadenopathy and lung nodules, and granulomatous disease was the most common benign finding. Although rare, primary lung malignancies do occur in young adults along with metastasis from a variety of other sites, with sarcoma being the most common pathology.
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Affiliation(s)
- Atsuko Seki
- Department of Surgical Pathology, Tokyo Women's Medical University, Shinjuku, Japan,
| | - Deborah J Chute
- Pathology and Laboratory Medicine, Cleveland Clinic, Cleveland, Ohio, USA
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Caputo A, Ciliberti V, Zeppa P, D'Antonio A. Cytological Diagnosis of Aggressive Small-Cell Lymphomas. Acta Cytol 2022; 66:269-278. [PMID: 35385847 DOI: 10.1159/000524270] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 03/18/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Despite their sometimes deceivingly bland appearance, some small-cell lymphomas are very aggressive and the prognosis of patients depends on a prompt diagnosis that allows the initiation of appropriate therapy. SUMMARY The present review discusses the salient cytological features of the most common aggressive small-cell lymphomas and then proceeds to analyze their main diagnostic criteria, including the usage of ancillary techniques. KEY MESSAGES Lymph node fine-needle aspiration cytology is a fast, safe, cheap, minimally invasive, and accurate procedure that can be used for a prompt and accurate diagnosis of lymphomas.
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Affiliation(s)
- Alessandro Caputo
- Department of Medicine and Surgery, University of Salerno, Salerno, Italy
| | - Valeria Ciliberti
- Department of Medicine and Surgery, University of Salerno, Salerno, Italy
| | - Pio Zeppa
- Department of Medicine and Surgery, University of Salerno, Salerno, Italy
- University Hospital "San Giovanni di Dio e Ruggi D'Aragona", Salerno, Italy
| | - Antonio D'Antonio
- University Hospital "San Giovanni di Dio e Ruggi D'Aragona", Salerno, Italy
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Bode-Lesniewska B. [New aspects in fine needle biopsies of the lymph nodes]. DER PATHOLOGE 2022; 43:109-116. [PMID: 34989818 DOI: 10.1007/s00292-021-01044-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/17/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND The cytology of lymph nodes is a cost-effective method with a short turnaround time and low risk to patients that delivers valuable information on the cause of the lymphadenopathies. OBJECTIVES To discuss the value of lymph node cytology in the diagnosis of lymph node swellings. METHODS Analysis of the causes of the controversially discussed aspects of lymph node cytology. Presentation of the diagnostic groups of lymph node cytology according to the Sydney system. RESULTS The technical aspects of lymph node sampling during fine needle biopsy, as well as the subsequent preparation of the correctly fixed direct smears and the triage of the sample for the auxiliary studies, may pose a significant challenge for some puncturers. The whole spectrum of modern pathologic auxiliary studies can be applied to correctly triaged cytologic samples. The diagnoses of fine needle biopsies of the lymph nodes can be divided into five groups according to the recently proposed Sydney reporting system: insufficient/non-diagnostic, benign, atypical, suspicious, and malignant. Further details concerning the diagnosis as well as recommendations on how to proceed are additionally included in cytologic reports. CONCLUSIONS The improvement of lymph node sampling as well as the technical aspects of the sample handling, including the application of auxiliary studies, considerably increase the diagnostic value of fine needle biopsy of the lymph nodes. Wide implementation of the usage of the diagnostic groups for reporting fine needle biopsies of the lymph nodes can standardize reporting and improve communication with other clinical specialists.
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Affiliation(s)
- Beata Bode-Lesniewska
- Zytopathologie, Pathologie Institut Enge, Hardturmstr. 133, 8005, Zürich, Schweiz.
- Universität Zürich, Zürich, Schweiz.
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Wang H, Hariharan VS, Sarma S. Diagnostic accuracy of fine-needle aspiration cytology for lymphoma: A systematic review and meta-analysis. Diagn Cytopathol 2021; 49:975-986. [PMID: 34004059 DOI: 10.1002/dc.24800] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/12/2021] [Accepted: 05/08/2021] [Indexed: 11/12/2022]
Abstract
BACKGROUND Fine-needle aspiration cytology (FNAC) has become one of the most useful modalities for diagnosis and staging of lymphoma. However, diagnostic accuracy of this technique has been reported with varying results across several studies around the world. Hence, this meta-analysis was done to assess the accuracy of FNAC for lymphoma diagnosis. METHODS We conducted a systematic search for all studies reporting the diagnostic accuracy of FNAC for lymphoma in the databases of PubMed Central, MEDLINE, EMBASE, MEDLINE, SCOPUS and Cochrane library from inception till January 2021. Meta-analysis was performed using STATA software "midas" package. RESULTS Forty-seven studies with 7268 patients were included. The pooled sensitivity and specificity of FNAC for diagnosing lymphoma were 93% (95% CI, 90%-95%) and 97% (95% CI, 95%-98%), respectively. Likelihood ratio positive was 33.5 (95% CI, 18.5-60.7) and likelihood ratio negative was 0.07 (0.05-0.11) making the technique to occupy the left upper quadrant in LR scattergram indicating that FNAC can be used for confirmation and exclusion. There was significant heterogeneity with significant chi-square test and I2 statistic >75%. There was significant publication bias as per Deek's test and funnel plot. CONCLUSION To summarize, our study found that FNAC has a vital role as a diagnostic tool for lymphoma with higher sensitivity and specificity. Further studies assessing the accuracy of FNAC on specific types of lymphoma is required.
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Affiliation(s)
- Huan Wang
- Department of Hematology Oncology, Taizhou People's Hospital, Taizhou, Jiangsu Province, 225300, China
| | | | - Susmita Sarma
- Department of Pathology, North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences (NEIGRIHMS), Shillong, Meghalaya, India
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Kroft SH, Sever CE, Bagg A, Billman B, Diefenbach C, Dorfman DM, Finn WG, Gratzinger DA, Gregg PA, Leonard JP, Smith S, Souter L, Weiss RL, Ventura CB, Cheung MC. Laboratory Workup of Lymphoma in Adults: Guideline From the American Society for Clinical Pathology and the College of American Pathologists. Arch Pathol Lab Med 2021; 145:269-290. [PMID: 33175094 DOI: 10.5858/arpa.2020-0261-sa] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2020] [Indexed: 11/06/2022]
Abstract
CONTEXT.— The diagnostic workup of lymphoma continues to evolve rapidly as experience and discovery led to the addition of new clinicopathologic entities and techniques to differentiate them. The optimal clinically effective, efficient, and cost-effective approach to diagnosis that is safe for patients can be elusive, in both community-based and academic practice. Studies suggest that there is variation in practice in both settings. OBJECTIVE.— To develop an evidence-based guideline for the preanalytic phase of testing, focusing on specimen requirements for the diagnostic evaluation of lymphoma. DESIGN.— The American Society for Clinical Pathology, the College of American Pathologists, and the American Society of Hematology convened a panel of experts in the laboratory workup of lymphoma to develop evidence-based recommendations. The panel conducted a systematic review of literature to address key questions. Using the Grading of Recommendations Assessment, Development, and Evaluation approach, recommendations were derived based on the available evidence, strength of that evidence, and key judgements as defined in the Grading of Recommendations Assessment, Development, and Evaluation Evidence to Decision framework. RESULTS.— Thirteen guideline statements were established to optimize specimen selection, ancillary diagnostic testing, and appropriate follow-up for safe and accurate diagnosis of indolent and aggressive lymphoma. CONCLUSIONS.— Primary diagnosis and classification of lymphoma can be achieved with a variety of specimens. Application of the recommendations can guide decisions on specimen suitability, diagnostic capabilities, and correct use of ancillary testing. Disease prevalence in patient populations, availability of ancillary testing, and diagnostic goals should be incorporated into algorithms tailored to each practice environment.
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Affiliation(s)
- Steven H Kroft
- From the Department of Pathology, Froedtert Hospital and the Medical Colleges of Wisconsin, Milwaukee (Kroft)
| | - Cordelia E Sever
- Pathology Associates of Albuquerque, Albuquerque, New Mexico (Sever)
| | - Adam Bagg
- The Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia (Bagg)
| | - Brooke Billman
- Governance Services (Billman), College of American Pathologists, Northfield, Illinois
| | - Catherine Diefenbach
- The Department of Medicine, New York University School of Medicine, New York, New York (Diefenbach)
| | - David M Dorfman
- The Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts (Dorfman)
| | - William G Finn
- The Department of Pathology and Laboratory Medicine, Warde Medical Laboratory, Ann Arbor, Michigan (Finn)
| | - Dita A Gratzinger
- The Department of Pathology, Stanford Health Care, Stanford, California (Gratzinger)
| | - Patricia A Gregg
- The Department of Pathology, Lehigh Regional Medical Center, Lehigh Acres, Florida (Gregg)
| | - John P Leonard
- The Department of Hematology and Oncology, Weill Cornell Medical College, New York, New York (Leonard)
| | - Sonali Smith
- The Department of Medicine, University of Chicago Medicine, Chicago, Illinois (Smith)
| | - Lesley Souter
- Souter is in private practice in Wellandport, Ontario, Canada
| | - Ronald L Weiss
- The Department of Pathology, ARUP Laboratories Inc, Salt Lake City, Utah (Weiss)
| | - Christina B Ventura
- The Pathology and Laboratory Quality Center (Ventura), College of American Pathologists, Northfield, Illinois
| | - Matthew C Cheung
- The Department of Medicine, Odette Cancer Centre/Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada (Cheung)
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8
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Kroft SH, Sever CE, Bagg A, Billman B, Diefenbach C, Dorfman DM, Finn WG, Gratzinger DA, Gregg PA, Leonard JP, Smith S, Souter L, Weiss RL, Ventura CB, Cheung MC. Laboratory Workup of Lymphoma in Adults. Am J Clin Pathol 2021; 155:12-37. [PMID: 33219376 DOI: 10.1093/ajcp/aqaa191] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES The diagnostic workup of lymphoma continues to evolve rapidly as experience and discovery lead to the addition of new clinicopathologic entities and techniques to differentiate them. The optimal clinically effective, efficient, and cost-effective approach to diagnosis that is safe for patients can be elusive, in both community-based and academic practice. Studies suggest that there is variation in practice in both settings. THE AIM OF THIS REVIEW IS TO develop an evidence-based guideline for the preanalytic phase of testing, focusing on specimen requirements for the diagnostic evaluation of lymphoma. METHODS The American Society for Clinical Pathology, the College of American Pathologists, and the American Society of Hematology convened a panel of experts in the laboratory workup of lymphoma to develop evidence-based recommendations. The panel conducted a systematic review of the literature to address key questions. Using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach, recommendations were derived based on the available evidence, the strength of that evidence, and key judgments as defined in the GRADE Evidence to Decision framework. RESULTS Thirteen guideline statements were established to optimize specimen selection, ancillary diagnostic testing, and appropriate follow-up for safe and accurate diagnosis of indolent and aggressive lymphoma. CONCLUSIONS Primary diagnosis and classification of lymphoma can be achieved with a variety of specimens. Application of the recommendations can guide decisions about specimen suitability, diagnostic capabilities, and correct utilization of ancillary testing. Disease prevalence in patient populations, availability of ancillary testing, and diagnostic goals should be incorporated into algorithms tailored to each practice environment.
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Affiliation(s)
- Steven H Kroft
- Department of Pathology, Froedtert Hospital and the Medical Colleges of Wisconsin, Milwaukee
| | | | - Adam Bagg
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia
| | - Brooke Billman
- Governance Services, College of American Pathologists, Northfield, IL
| | | | - David M Dorfman
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | - William G Finn
- Department of Pathology and Laboratory Medicine, Warde Medical Laboratory, Ann Arbor, MI
| | | | - Patricia A Gregg
- Dept of Pathology, Lehigh Regional Medical Center, Lehigh Acres, FL
| | - John P Leonard
- Department of Hematology and Oncology, Weill Cornell Medical College, New York, NY
| | - Sonali Smith
- Department of Medicine, The University of Chicago Medicine, Chicago, IL
| | | | - Ronald L Weiss
- Department of Pathology, ARUP Laboratories, Salt Lake City, UT
| | - Christina B Ventura
- Pathology and Laboratory Quality Center, College of American Pathologists, Northfield, IL
| | - Matthew C Cheung
- Department of Medicine, Odette Cancer Centre/Sunnybrook Health Sciences Centre, Toronto, Canada
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Al-Abbadi MA, Barroca H, Bode-Lesniewska B, Calaminici M, Caraway NP, Chhieng DF, Cozzolino I, Ehinger M, Field AS, Geddie WR, Katz RL, Lin O, Medeiros LJ, Monaco SE, Rajwanshi A, Schmitt FC, Vielh P, Zeppa P. A Proposal for the Performance, Classification, and Reporting of Lymph Node Fine-Needle Aspiration Cytopathology: The Sydney System. Acta Cytol 2020; 64:306-322. [PMID: 32454496 DOI: 10.1159/000506497] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/06/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND The evaluation of lymph nodes (LN) by fine-needle aspiration cytology (FNAC) is routinely used in many institutions but it is not uniformly accepted mainly because of the lack of guidelines and a cytopathological diagnostic classification. A committee of cytopathologists has developed a system of performance, classification, and reporting for LN-FNAC. METHODS The committee members prepared a document that has circulated among them five times; the final text has been approved by all the participants. It is based on a review of the international literature and on the expertise of the members. The system integrates clinical and imaging data with cytopathological features and ancillary techniques. The project has received the endorsement and patronage of the International Academy of Cytology and the European Federation of the Cytology Societies. RESULTS Clinical, imaging, and serological data of lymphadenopathies, indications for LN-FNAC, technical procedures, and ancillary techniques are evaluated with specific recommendations. The reporting system includes two diagnostic levels. The first should provide basic diagnostic information and includes five categories: inadequate/insufficient, benign, atypical lymphoid cells of undetermined/uncertain significance, suspicious, and malignant. For each category, specific recommendations are provided. The second diagnostic level, when achievable, should produce the identification of specific benign or malignant entities and additional information by utilizing ancillary testing. CONCLUSION The authors believe that the introduction of this system for performing and reporting LN-FNAC may improve the quality of the procedure, the report, and the communication between cytopathologists and the clinicians. This system may lead to a greater acceptance and utilization of LN-FNAC and to a better interdisciplinary understanding of the results of this procedure.
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Affiliation(s)
- Mousa A Al-Abbadi
- Department of Pathology, Microbiology and Forensic Medicine, the University of Jordan, Amman, Jordan
| | - Helena Barroca
- Serviço de Anatomia Patológica, Hospital S João-Porto, Porto, Portugal
| | | | - Maria Calaminici
- Department of Cellular Pathology, Barts Health NHS Trust and Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Nancy P Caraway
- Department of Anatomic Pathology, the University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - David F Chhieng
- Department of Pathology, University of Washington Medical Center, Seattle, Washington, USA
| | - Immacolata Cozzolino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", Naples, Italy
| | - Mats Ehinger
- Department of Clinical Sciences, Pathology, Skane University Hospital, Lund University, Lund, Sweden
| | - Andrew S Field
- University of NSW Medical School, Sydney, New South Wales, Australia
- University of Notre Dame Medical School, Sydney, New South Wales, Australia
- Department of Anatomical Pathology, St Vincent's Hospital, Sydney, New South Wales, Australia
| | - William R Geddie
- University Health Network, UHN, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | | | - Oscar Lin
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - L Jeffrey Medeiros
- Department of Hematopathology, the University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sara E Monaco
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Arvind Rajwanshi
- Department of Cytopathology and Gynecologic Pathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Fernando C Schmitt
- Institute of Molecular Pathology and Immunology of Porto University (IPATIMUP), Instituto de Investigação e Inovação em Saúde and Medical Faculty, University of Porto, Porto, Portugal
| | | | - Pio Zeppa
- Department of Medicine and Surgery, Università degli Studi di Salerno, Fisciano, Salerno, Italy,
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10
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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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11
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Ingersoll KF, Zhao Y, Harrison GP, Li Y, Yang LH, Wang E. Limited Tissue Biopsies and Hematolymphoid Neoplasms. Am J Clin Pathol 2019; 152:782-798. [PMID: 31365922 DOI: 10.1093/ajcp/aqz107] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Use of fine-needle aspiration/needle core biopsy (FNA/CNB) in evaluating hematolymphoid processes has been debated. We investigate its applicability in various clinicopathologic settings. METHODS We retrospectively analyzed 152 cases of FNA/CNB. RESULTS Of 152 FNA/CNBs, 124 (81.6%) resulted in diagnoses without excisional biopsies, while 28 required subsequent excisional biopsies. Of these, 43 FNA/CNBs performed for suspected lymphoma relapse demonstrated 95.4% diagnostic rate (41/43), which was significantly better than those without history of lymphoma (77/109, 71%; odds ratio [OR], 8.5; confidence interval, 1.9-37.4). Patients with immunodeficiency also showed a high rate of diagnosis by FNA/CNB (100%). When stratified by types of disease, diffuse large B-cell lymphoma/high-grade B-cell lymphoma demonstrated a higher success rate (92.7%) than small B-cell lymphoma (79.2%), though the difference was not statistically significant (OR, 3.3; P value = .07). A subsequent excisional biopsy was required in 28 cases, 23 of which resulted in diagnoses concordant with the FNA/CNB. Five cases showed diagnostic discordance, reflecting pitfalls of FNA/CNB in unusual cases with complex pathology. CONCLUSIONS FNA/CNB is practical in evaluating most hematolymphoid lesions, with high efficacy in recurrent disease and some primary neoplasms with homogeneous/ aggressive histology, or characteristic immunophenotype.
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Affiliation(s)
| | - Yue Zhao
- Department of Pathology, Duke University Hospital, Durham, NC
- Department of Pathology, College of Basic Medical Sciences and First Affiliated Hospital, China Medical University, Shengyang, China
| | - Grant P Harrison
- Department of Pathology, University of Virginia, Charlottesville
| | - Yang Li
- Department of Pathology, Duke University Hospital, Durham, NC
| | - Lian-He Yang
- Department of Pathology, Duke University Hospital, Durham, NC
- Department of Pathology, College of Basic Medical Sciences and First Affiliated Hospital, China Medical University, Shengyang, China
| | - Endi Wang
- Department of Pathology, Duke University Hospital, Durham, NC
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12
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Lee PH, Weng SW, Liu TT, You HL, Liao CK, Wang MC, Huang WT. RHOA G17V mutation in angioimmunoblastic T-cell lymphoma: A potential biomarker for cytological assessment. Exp Mol Pathol 2019; 110:104294. [DOI: 10.1016/j.yexmp.2019.104294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/27/2019] [Accepted: 08/02/2019] [Indexed: 12/18/2022]
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13
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Cozzolino I, Giudice V, Mignogna C, Selleri C, Caputo A, Zeppa P. Lymph node fine-needle cytology in the era of personalised medicine. Is there a role? Cytopathology 2019; 30:348-362. [PMID: 31004534 DOI: 10.1111/cyt.12708] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/07/2019] [Accepted: 04/09/2019] [Indexed: 12/12/2022]
Abstract
The 2016 World Health Organisation revised classification of lymphoma has sub-classified well-defined entities and added a number of provisional entities on the basis of new knowledge on genetic, epigenetics and phenotypical data; prognostic and predictive features are also part of this classification. New knowledge on well-defined entities further enlightens the mechanisms of lymphomagenesis, which are more complex and multifactorial than once believed. Therapies are also more complex because traditional clinical trials have been integrated with new drugs and compounds with unique mechanisms of actions against distinct molecular targets. As lymphoma acquires additional genetic and phenotypic features over the time, pathological assessment is also necessary. Histological evaluation and tissue collection by surgical biopsies are necessary for phenotypical and molecular purposes; however, these are demanding procedures for both the patient and the health care system. At the same time, the choice of the best treatment for a specific entity, in different phases and different patients requires information that may not be available when the biopsy is performed. Fine needle aspiration cytology (FNAC) is successfully used in lymph nodes (LNs) in combination with different ancillary techniques and might be used to assess the phenotypic and genetic profile of specific targets and to get key information for therapy, in different phases and stages of the disease, with the option to re-check the same target over time, without surgical excision. This brief review describes LN-FNAC diagnostic criteria, current therapies for lymphomas and the potential role of LN-FNAC in selecting non-Hodgkin lymphomas patients for specific targeted treatments.
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Affiliation(s)
- Immacolata Cozzolino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania "Luigi Vanvitelli", Napoli, Italy
| | - Valentina Giudice
- Medicine and Surgery, Universita degli Studi di Salerno, Fisciano, Campania, Italy.,Department of Health Sciences, Universita' degli Studi "Magna Graecia" Catanzaro (IT), Catanzaro, Italy
| | - Chiara Mignogna
- Department of Health Sciences, Universita' degli Studi "Magna Graecia" Catanzaro (IT), Catanzaro, Italy
| | - Carmine Selleri
- Medicine and Surgery, Universita degli Studi di Salerno, Fisciano, Campania, Italy
| | - Alessandro Caputo
- Medicine and Surgery, Universita degli Studi di Salerno, Fisciano, Campania, Italy
| | - Pio Zeppa
- Medicine and Surgery, Universita degli Studi di Salerno, Fisciano, Campania, Italy
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14
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Crous H, Gillam A, Kalokerinos M, Knezevic S, Hobson P, Papadimos DJ, Shield PW. Investigation of lymphoid lesions of the head and neck using combined fine needle aspiration cytology and flow cytometry: Accuracy and pitfalls. Cytopathology 2019; 30:370-377. [DOI: 10.1111/cyt.12706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/27/2019] [Accepted: 04/02/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Heinrich Crous
- Cytology Department Sullivan Nicolaides Pathology Bowen Hills Queensland Australia
- Faculty of Health School of Biomedical Sciences Queensland University of Technology Brisbane Queensland Australia
| | - Amanda Gillam
- Immunology Department Sullivan Nicolaides Pathology Bowen Hills Queensland
| | | | - Sasenka Knezevic
- Immunology Department Sullivan Nicolaides Pathology Bowen Hills Queensland
| | - Peter Hobson
- Immunology Department Sullivan Nicolaides Pathology Bowen Hills Queensland
| | - David J Papadimos
- Cytology Department Sullivan Nicolaides Pathology Bowen Hills Queensland Australia
| | - Paul W Shield
- Cytology Department Sullivan Nicolaides Pathology Bowen Hills Queensland Australia
- Faculty of Health School of Biomedical Sciences Queensland University of Technology Brisbane Queensland Australia
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15
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Yang Y, Zhao M, Liu X, Ge P, Zheng F, Chen T, Sun X. Two-way detection of image features and immunolabeling of lymphoma cells with one-step microarray analysis. BIOMICROFLUIDICS 2018; 12:064106. [PMID: 30867867 PMCID: PMC6404911 DOI: 10.1063/1.5063369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/10/2018] [Indexed: 05/04/2023]
Abstract
Detecting the number of pathological lymphoma cells and lymphocyte subtypes in blood is helpful for clinical diagnosis and typing of lymphoma. In the current study, cell type is identified by cell morphological features and immunolabeled lymphocyte subtypes. Red blood cells and leukocytes were separated using a microfluidic cell chip based on physical blood cell parameters, and leukocytes were identified using five characteristic parameters: energy variance, entropy variance, moment of inertia variance, color mean, and cell area individually. The number of red blood cells that could come into contact with the leukocyte membrane was ≤2 based on the microfluidic injection flow rate of microfluidic chips. Anti-CD3 and anti-CD19 antibodies were used for immunofluorescence staining of T-lymphocyte and B-lymphocyte surface antigens, respectively. The results suggested that the microfluidic assay could detect lymphocyte surface antigen markers and intact leukocytes. Therefore, we report a one-step microfluidic chip for classifying hematological lymphoma cells based on the physical parameters of cells, which can simultaneously measure the overall morphology of blood cells and immunolabeling of lymphocyte surface antigens in one step, solving the current problem of detecting subtypes of hematological lymphoma cells based on multiple methods and multi-step detection.
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Affiliation(s)
- Yu Yang
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, People’s Republic of China
| | - Meng Zhao
- School of Computer Science and Engineering, Tianjin University of Technology, Tianjin 300384, People’s Republic of China
| | - Xiaodan Liu
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, People’s Republic of China
| | - Peng Ge
- Department of Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, People’s Republic of China
| | - Fang Zheng
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, People’s Republic of China
| | - Tao Chen
- Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China
| | - Xuguo Sun
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, People’s Republic of China
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16
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Barroca H, Bode-Lesniewska B, Cozzolino I, Zeppa P. Management of cytologic material, preanalytic procedures and biobanking in lymph node cytopathology. Cytopathology 2018; 30:17-30. [DOI: 10.1111/cyt.12609] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 06/06/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Helena Barroca
- Serviço de Anatomia Patológica; Hospital S João-Porto; Porto Portugal
| | - Beata Bode-Lesniewska
- Institute of Pathology and Molecular Pathology; University Hospital; Zurich Switzerland
| | - Immacolata Cozzolino
- Dipartimento di Salute Mentale e Fisica e Medicina; Università degli studi della Campania Luigi Vanvitelli; Napoli Italy
| | - Pio Zeppa
- Dipartimento di Medicina e Chirurgia; Università di Salerno; Salerno Italy
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17
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Aisagbonhi O, DeLelys M, Hartford N, Preffer F, Ly A. Utility of Flow Cytometry in Diagnosing Hematologic Malignancy in Tonsillar Tissue. Int J Surg Pathol 2017; 25:406-413. [PMID: 28351195 DOI: 10.1177/1066896917700726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Tonsil surgical biopsy or excision is a very common procedure. However, there exist no consensus guidelines for the pathologic handling of tonsil specimens; gross and/or microscopic evaluation may be used. Diagnosis of tonsillar hematologic malignancy requires histology, immunohistochemistry and/or flow cytometry. Data regarding the utility of flow cytometry in tonsillar tissues are limited. We assessed our experience with flow cytometry for tonsil diagnosis with regard to accuracy and use patterns at a tertiary academic medical center. METHODS We retrospectively analyzed all surgically biopsied or excised tonsil specimens that underwent flow cytometry evaluation from August 2011 to March 2014. Patient clinical information, intraoperative frozen section, histology, immunohistochemistry, and flow cytometry diagnoses were recorded. RESULTS The study included 154 tonsil specimens from 89 females and 65 males. Patients averaged 27.4 years old (range 2-87 years); 73 were pediatric. Both histology and flow cytometry were benign for 148 patients (96.1%). Hematolymphoid malignancy was diagnosed in 6 adults by histology/immunohistochemistry: diffuse large B-cell lymphoma (2), small B-cell lymphoma (2), concomitant follicular lymphoma and histiocytic sarcoma (1), and extraosseous plasmacytoma (1). Flow cytometry identified abnormal populations in 5 of 6 cases, and detected clonal populations in 2 reactive follicular hyperplasia cases. CONCLUSION Tonsillar hematolymphoid malignancy is uncommon, and flow cytometry was less accurate than histology/immunohistochemistry for its diagnosis. Despite the rarity of tonsillar lymphoma in children, nearly half of study patients were pediatric. Intraoperative frozen section diagnosis showed excellent sensitivity for malignancy, and could be used to effectively triage cases for flow cytometry evaluation.
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Affiliation(s)
| | | | | | | | - Amy Ly
- 1 Massachusetts General Hospital, Boston, MA, USA
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18
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Fuller MY, Thrall MJ. Utility of flow cytometry analysis for pleural and peritoneal fluids. J Am Soc Cytopathol 2016; 5:339-344. [PMID: 31042545 DOI: 10.1016/j.jasc.2016.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 07/01/2016] [Accepted: 07/05/2016] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Pleural and peritoneal/ascites fluid samples with many lymphocytes are commonly received in the cytology laboratory. It is often difficult to distinguish reactive lymphocytes from hematopoietic malignancy based on morphology alone, however. Flow cytometry can be a useful adjunct in body fluids, although literature on this subject is limited. MATERIALS AND METHODS This study is a single-institution 5-year retrospective review of 377 fluid samples from 341 patients with corresponding flow cytometry analysis. The cytologic findings were correlated with the flow cytometry results and clinical data, as available. RESULTS Of 4158 pleural fluids received over 5 years, 325 (7.8%) had corresponding flow cytometry analysis. Of these 325 samples, 57 (17.5%) were positive for hematopoietic malignancy by flow cytometry. Of the positive cases, only 24 (8.7%) represented a new diagnosis of hematopoietic malignancy (ie, did not have a known history). Of 3020 peritoneal/ascites fluids received over 5 years, 52 (2%) had corresponding flow cytometry. Of these, 8 were positive for hematopoietic malignancy, and only 2 represented a presumed new diagnosis. CONCLUSIONS Routine flow cytometry analysis for pleural and peritoneal/ascitic fluids is of limited utility, with only rare cases positive for hematopoietic malignancy without a known history. Of these cases, many had atypical cells that suggested a positive diagnosis. Conversely, in cases with a known history, about 75% were positive for hematopoietic malignancy. Our study suggests that the utility of flow cytometry for pleural and peritoneal/ascitic fluids is limited, and should be used sparingly in cases without atypical cytologic features, high clinical suspicion, or known history.
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Affiliation(s)
- Maren Y Fuller
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas.
| | - Michael J Thrall
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas
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19
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Bode-Lesniewska B. Flow Cytometry and Effusions in Lymphoproliferative Processes and Other Hematologic Neoplasias. Acta Cytol 2016; 60:354-364. [PMID: 27578145 DOI: 10.1159/000448325] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 07/08/2016] [Indexed: 12/22/2022]
Abstract
Cytopathologists are regularly confronted with lymphocyte-rich effusions, and the definite decision of whether the lymphocytosis is of a purely reactive nature or a presentation of an indolent lymphoma may be an extremely difficult one based on microscopy alone. Flow cytometry (FC) offers many advantages in terms of its application in body cavity fluids, and it has proven to be very useful both in the setting of a known disease and for new lymphoma diagnoses. In this paper, the studies published in recent years dealing with the applications of FC in body cavity effusions in the context of hematologic neoplasia are reviewed, stressing the integrative diagnostic approach. The incorporation of microscopical, immunophenotypical, and molecular findings from examinations of the cellular content of effusions and the interpretation of results in relation to the current WHO classification of hematolymphoid malignancies give cytopathologists new perspectives on advanced and clinically highly relevant diagnostics.
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20
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Peluso AL, Ieni A, Mignogna C, Zeppa P. Lymph Node Fine-Needle Cytology: Beyond Flow Cytometry. Acta Cytol 2016; 60:372-384. [PMID: 27560152 DOI: 10.1159/000447734] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 06/20/2016] [Indexed: 12/16/2022]
Abstract
Lymph node (LN) fine-needle cytology (FNC) coupled with flow cytometry immunophenotyping provides relevant information for the diagnosis of non-Hodgkin lymphoma (NHL). Numerous studies have shown FNC samples to be suitable for different molecular procedures; in this review, some of the molecular procedures most commonly employed for NHL are briefly described and evaluated in this perspective. Fluorescence in situ hybridization and chromogenic in situ hybridization are briefly described. Polymerase chain reaction (PCR)-based assays are used to identify and quantify mutations and translocations, namely immunoglobulin (IGH) and T-cell receptor rearrangements by clonality testing and IGVH somatic hypermutations either by Sanger sequencing, single-strand conformational polymorphisms or RT-PCR strategies. High-throughput technologies (HTT) encompass numerous and different diagnostic tools that share the capacity of multiple molecular investigation and sample processing in a fast and reproducible manner. HTT includes gene expression profiling, comparative genomic hybridization, single-nucleotide polymorphism arrays and next-generation sequencing technologies. A brief description of these tools and their potential application to LN FNC is reported. The challenge for FNC will be to achieve new knowledge and apply new technologies to FNC, exploiting its own basic qualities.
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Affiliation(s)
- Anna Lucia Peluso
- Department of Medicine and Surgery, University of Salerno, Baronissi, Italy
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21
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Stacchini A, Demurtas A, Aliberti S. Extranodal Lymphoproliferative Processes and Flow Cytometry. Acta Cytol 2016; 60:315-325. [PMID: 27537785 DOI: 10.1159/000448021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/28/2016] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Fine-needle aspiration (FNA) cytology is a safe and cost-effective technique for the diagnosis of lymphoproliferative processes, especially when correlated with clinical and imaging studies. However, cytology alone may be unable to detect a lymphoid neoplastic process, as architectural features are less obvious than in histologic preparations and, in certain cases, reactive processes may mimic lymphoma. Flow cytometry (FC) has been recognized as an important ancillary technique in the diagnosis of lymphoid neoplasms and it can be used in conjunction with FNA in the evaluation of lymphoproliferative processes. STUDY DESIGN We performed a review of the published literature concerning FC applied to the detection of salivary glands and thyroid lymphoproliferative processes, which are frequently related to autoimmune diseases and difficult to diagnose by cytomorphology alone. RESULTS FC is able to detect and subtype non-Hodgkin lymphomas and may contribute to the exclusion of a neoplastic process in cytologically unclear cases. CONCLUSIONS FC can be successfully applied in the differential diagnosis of lymphoproliferative processes in the head and neck region. The FNA-FC combined approach can reduce time to therapy and may prevent unnecessary surgical biopsies.
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Affiliation(s)
- Alessandra Stacchini
- Flow Cytometry Unit, Anatomic Pathology, Diagnostic Laboratory Department, Città della Salute e della Scienza, Turin, Italy
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22
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Lab-on-chip cytometry based on magnetoresistive sensors for bacteria detection in milk. SENSORS 2014; 14:15496-524. [PMID: 25196163 PMCID: PMC4179045 DOI: 10.3390/s140815496] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 07/14/2014] [Accepted: 08/01/2014] [Indexed: 12/11/2022]
Abstract
Flow cytometers have been optimized for use in portable platforms, where cell separation, identification and counting can be achieved in a compact and modular format. This feature can be combined with magnetic detection, where magnetoresistive sensors can be integrated within microfluidic channels to detect magnetically labelled cells. This work describes a platform for in-flow detection of magnetically labelled cells with a magneto-resistive based cell cytometer. In particular, we present an example for the validation of the platform as a magnetic counter that identifies and quantifies Streptococcus agalactiae in milk.
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23
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Hebeda K, Preijers F. Flow cytometric pattern recognition of lymph node biopsies with lymphomas that lack lineage characteristics. Int J Lab Hematol 2014; 36:254-60. [PMID: 24750671 DOI: 10.1111/ijlh.12229] [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: 01/17/2014] [Accepted: 03/10/2014] [Indexed: 11/30/2022]
Abstract
Although immunophenotyping (IPT) using flow cytometry is a routine technique that is applied in many laboratories as a diagnostic tool for lymphadenopathy, some diagnostic challenges persist. In this review, we will discuss pitfalls in the daily practice of lymph node diagnostics with the focus on general characteristics as lymphoid scatter patterns and lineage specific antigens that are used to define lymphoid populations. The absence of these characteristics on proliferating lymphoid cells can potentially lead to a wrong diagnosis. At the same time, this provides evidence for malignant transformation. Sporadic examples of reactive lymphoid proliferations with similar phenotypes are also discussed, illustrating the need for correlating IPT with morphology and clinical features.
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Affiliation(s)
- K Hebeda
- Department of Pathology, Radboudumc, Nijmegen, The Netherlands
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24
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Stacchini A, Demurtas A, Aliberti S. Immunophenotyping of paucicellular samples. CURRENT PROTOCOLS IN CYTOMETRY 2014; 68:9.46.1-9.46.14. [PMID: 24692058 DOI: 10.1002/0471142956.cy0946s68] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Immunophenotyping of paucicellular samples may represent a diagnostic challenge in the flow cytometry (FC) laboratory routine, as the scarcity of cells limits the number of tests that can be performed. Specimens such as fine needle aspirates (FNA), human body fluids (BF), cerebrospinal fluid (CSF), or ocular fluid (OF) sent for FC investigations in the case of suspicion of lymphoma, or for lymphoma monitoring, may contain very low numbers of cells. In these cases, it is mandatory to obtain the largest amount possible of useful information from a single tube. The basic protocol described in this unit provides a method that combines the use of multiple monoclonal antibodies (MAbs) with a Boolean gating strategy to identify and quantify the main lymphocyte populations, as well as to detect lymphomatous B cells or any aberrant T cell expression, if present, in paucicellular samples.
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Affiliation(s)
- Alessandra Stacchini
- Flow Cytometry Unit, Anatomical Pathology, Diagnostic Laboratory Department, Città della Salute e della Scienza, Turin, Italy
| | - Anna Demurtas
- Flow Cytometry Unit, Anatomical Pathology, Diagnostic Laboratory Department, Città della Salute e della Scienza, Turin, Italy
| | - Sabrina Aliberti
- Flow Cytometry Unit, Anatomical Pathology, Diagnostic Laboratory Department, Città della Salute e della Scienza, Turin, Italy
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25
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Loya A, Nadeem M, Yusuf MA. Use of ancillary techniques in improving the yield of samples obtained at endoscopic ultrasound-guided fine needle aspiration of thoracic and abdominal lymph nodes. Acta Cytol 2014; 58:192-7. [PMID: 24503737 DOI: 10.1159/000357768] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 12/05/2013] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Thoracic and abdominal lymph nodes may be enlarged in a variety of disorders. Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is a well-established technique for sampling such nodes, but samples obtained are small, which may make definitive diagnosis difficult. We conducted a retrospective review to determine the contribution of ancillary techniques, such as special histochemistry (SHC), immunohistochemistry (IHC) and flow cytometry, in increasing the diagnostic yield of EUS-FNA carried out at our institution. STUDY DESIGN Between November 2005 and December 2012, 278 patients underwent EUS-FNA of enlarged thoracic and abdominal nodes at our institution. All specimens obtained were subjected to rapid on-site evaluation. Data were reviewed in all patients requiring ancillary techniques for definitive diagnosis. RESULTS Ancillary techniques were performed in 111 of 278 cases. IHC was performed in 24, flow cytometry in 3 and SHC staining in 84. IHC and SHC aided in reaching a definitive diagnosis in 19 of 24 and 3 cases, respectively. Flow cytometry led to a definitive diagnosis in 3 cases. A total of 80 cases were also submitted to culture for tuberculosis with 6 positive for Mycobacterium tuberculosis. CONCLUSIONS Ancillary studies in EUS-FNA of thoracic and abdominal lymph nodes can significantly improve the yield of EUS-FNA.
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Affiliation(s)
- Asif Loya
- Department of Pathology and Internal Medicine, Shaukat Khanum Memorial Cancer Hospital and Research Center, Lahore, Pakistan
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26
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Ko HM, Geddie WR, Boerner SL, Rogalla P, da Cunha Santos G. Cytomorphological and clinicopathological spectrum of pulmonary marginal zone lymphoma: the utility of immunophenotyping, PCR and FISH studies. Cytopathology 2013; 25:250-8. [DOI: 10.1111/cyt.12119] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2013] [Indexed: 11/28/2022]
Affiliation(s)
- H. M. Ko
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Toronto ON Canada
- Laboratory Medicine Program; University Health Network; University of Toronto; Toronto ON Canada
| | - W. R. Geddie
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Toronto ON Canada
- Laboratory Medicine Program; University Health Network; University of Toronto; Toronto ON Canada
| | - S. L. Boerner
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Toronto ON Canada
- Laboratory Medicine Program; University Health Network; University of Toronto; Toronto ON Canada
| | - P. Rogalla
- Joint Department of Medical Imaging; University Health Network; University of Toronto; Toronto ON Canada
| | - G. da Cunha Santos
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Toronto ON Canada
- Laboratory Medicine Program; University Health Network; University of Toronto; Toronto ON Canada
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27
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Zimmermann AK, Camenisch U, Rechsteiner MP, Bode-Lesniewska B, Rössle M. Value of immunohistochemistry in the detection of BRAF(V600E) mutations in fine-needle aspiration biopsies of papillary thyroid carcinoma. Cancer Cytopathol 2013; 122:48-58. [PMID: 24039206 DOI: 10.1002/cncy.21352] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 07/18/2013] [Accepted: 08/05/2013] [Indexed: 01/08/2023]
Abstract
BACKGROUND Fine-needle aspiration biopsy (FNAB) is important in the diagnostic establishment of suspicious thyroid nodules. In thyroid neoplasms, mutation of the BRAF gene occurs rather exclusively in papillary thyroid carcinoma (PTC) and results in>98% of the cases in V600E amino acid substitution. In the current study, the authors investigated the diagnostic value of a recently described monoclonal antibody that detects this specific mutation on FNAB specimens from patients with PTC. METHODS BRAF(V600E) status of FNAB cell blocks from 55 patients with PTC was analyzed by immunohistochemistry (IHC) with the new BRAF(V600E) antibody (clone VE1) and by Sanger sequencing (SaS). In discrepant cases, ultra-deep sequencing was also performed. Available corresponding histological specimens were investigated by IHC and, in selected cases, with SaS as well. RESULTS All cases yielded evaluable IHC staining results of the cell block sections with good interobserver agreement (kappa value, 0.650). Ten tumors (18.2%) demonstrated no staining, 10 tumors (18.2%) demonstrated equivocal staining, 25 tumors (45.4%) demonstrated moderate staining, and 10 tumors (18.2%) demonstrated strong staining. SaS was able to be performed in 48 cases. Nineteen cases demonstrated wild-type BRAF and 29 cases were found to have the BRAF(V600E) mutation. After performing ultra-deep sequencing 1 false-positive and 2 false-negative VE1 IHC cases remained, resulting in a sensitivity of 93.8% and a specificity of 93.8%. CONCLUSIONS BRAF(V600E) mutations in FNAB specimens from patients with PTC can be reliably detected in most cases by IHC with a new mutation-specific antibody. Interpretation of VE1 IHC staining results on cell block slides of PTC can be difficult in some cases.
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Stacchini A, Aliberti S, Pacchioni D, Demurtas A, Isolato G, Gazzera C, Veltri A, Maletta F, Molinaro L, Novero D. Flow cytometry significantly improves the diagnostic value of fine needle aspiration cytology of lymphoproliferative lesions of salivary glands. Cytopathology 2013; 25:231-40. [DOI: 10.1111/cyt.12084] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2013] [Indexed: 12/11/2022]
Affiliation(s)
- A. Stacchini
- Flow Cytometry Unit; Diagnostic Laboratory Department; Citta' della Salute e della Scienza; Turin Italy
| | - S. Aliberti
- Flow Cytometry Unit; Diagnostic Laboratory Department; Citta' della Salute e della Scienza; Turin Italy
| | - D. Pacchioni
- Pathology Service; Diagnostic Laboratory Department; Citta' della Salute e della Scienza; Turin Italy
| | - A. Demurtas
- Flow Cytometry Unit; Diagnostic Laboratory Department; Citta' della Salute e della Scienza; Turin Italy
| | - G. Isolato
- Diagnostic Imaging Department; Citta' della Salute e della Scienza; Turin Italy
| | - C. Gazzera
- Diagnostic Imaging Department; Citta' della Salute e della Scienza; Turin Italy
| | - A. Veltri
- Diagnostic Imaging Department; San Luigi Gonzaga University Hospital; Orbassano Turin Italy
| | - F. Maletta
- Pathology Service; Diagnostic Laboratory Department; Citta' della Salute e della Scienza; Turin Italy
| | - L. Molinaro
- Pathology Service; Diagnostic Laboratory Department; Citta' della Salute e della Scienza; Turin Italy
| | - D. Novero
- Pathology Service; Diagnostic Laboratory Department; Citta' della Salute e della Scienza; Turin Italy
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Szczepanek-Parulska E, Szkudlarek M, Majewski P, Breborowicz J, Ruchala M. Thyroid nodule as a first manifestation of Hodgkin lymphoma-report of two cases and literature review. Diagn Pathol 2013; 8:116. [PMID: 23856094 PMCID: PMC3751227 DOI: 10.1186/1746-1596-8-116] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 06/30/2013] [Indexed: 01/08/2023] Open
Abstract
UNLABELLED Lymphomas account for less than 5% of thyroid malignant lesions. Vast majority of them are B-cell non-Hodgkin lymphomas (NHL), while Hodgkin lymphoma (HL) is extremely rare. Here we present two cases of HL, at baseline manifesting as a thyroid lesion. First patient, 29-year-old pregnant female, initially suspected for metastatic medullary thyroid cancer, was eventually diagnosed with mixed cellularity type of thyroid HL. Second patient, 22-year-old woman with suspicion of advanced thyroid cancer, was in the end diagnosed with an extra-lymphatic classical HL of the thyroid. In both cases, despite repeated fine-needle aspiration biopsy, cytological examination gave inconclusive or misleading results. On histopathological examination, thyroid tumor cells were positive for CD15 and CD30 antigen, which is typical for Reed-Sternberg cells. In the report authors also discuss difficulties in management as well as potential importance of novel methods such as FISH, PCR and other molecular techniques in diagnostics of thyroid lymphomas. VIRTUAL SLIDES The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/2896947559559648.
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Affiliation(s)
- Ewelina Szczepanek-Parulska
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland
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Xu Y, Fernandez C, Alcantara S, Bailey M, De Rose R, Kelleher AD, Zaunders J, Kent SJ. Serial study of lymph node cell subsets using fine needle aspiration in pigtail macaques. J Immunol Methods 2013; 394:73-83. [PMID: 23702165 DOI: 10.1016/j.jim.2013.05.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Revised: 05/01/2013] [Accepted: 05/02/2013] [Indexed: 11/28/2022]
Abstract
Lymphoid tissues are of intense interest for studies of the pathogenesis of human immunodeficiency virus (HIV) in humans and simian immunodeficiency virus (SIV) in macaques but are relatively difficult to sample non-invasively. Fine needle aspiration (FNA) cytology, conventionally a diagnostic procedure for lymphadenopathy, can be used for longitudinal study of tissue cell subsets during HIV/SIV infection. In this study, we serially sampled lymph node (LN) FNA from pigtail macaques and studied cell subsets in the aspect of absolute count, frequency, and functionality by flow cytometry. The median recovered lymphocyte count from FNA samples was 2.01×10(5) (3.0×10(3) to 2.25×10(6), n=38) and median CD4+ T cell subset recovered was 5.94×10(4) (277 to 6.17×10(5), n=38). Although we observed a relatively large variation in the frequencies of cell subsets of FNA samples taken from different time points, the cell subset composition of FNA samples, in particular T cell and CD4+ T cell frequencies, was broadly comparable to whole excised LNs (n=6) and distinct from peripheral blood. A subset of CD4+ T cells that is located almost exclusively in secondary lymphoid tissues, T follicular helper (TFH) cells, was readily identifiable in LN FNAs and the TFH cell frequencies were strongly correlated with B cell frequencies. In vitro functionality of FNA lymphocytes was demonstrated using polyclonal SEB stimulation, resulting in a median 6% of responding CD4+ T cells, comparable to circulating CD4+ T lymphocytes. We conclude that serial sampling of macaque LNs using FNA is a potentially useful method to study the immunopathogenesis of SIV infection and may be extended to HIV infection.
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Affiliation(s)
- Yin Xu
- The Kirby Institute, The University of New South Wales, Sydney, New South Wales 2052, Australia.
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31
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Tong LC, Ko HM, Saieg MA, Boerner S, Geddie WR, da Cunha Santos G. Subclassification of lymphoproliferative disorders in serous effusions. Cancer Cytopathol 2012; 121:261-70. [DOI: 10.1002/cncy.21257] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 10/08/2012] [Accepted: 10/09/2012] [Indexed: 12/22/2022]
Affiliation(s)
- Leung Chu Tong
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Ontario Canada
- Laboratory Medicine Program; University Health Network; Toronto Ontario Canada
| | - Hyang-Mi Ko
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Ontario Canada
- Laboratory Medicine Program; University Health Network; Toronto Ontario Canada
| | - Mauro Ajaj Saieg
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Ontario Canada
- Department of Pathology; Santa Casa Medical School; Sao Paulo Brazil
| | - Scott Boerner
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Ontario Canada
- Laboratory Medicine Program; University Health Network; Toronto Ontario Canada
| | - William R. Geddie
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Ontario Canada
- Laboratory Medicine Program; University Health Network; Toronto Ontario Canada
| | - Gilda da Cunha Santos
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Ontario Canada
- Laboratory Medicine Program; University Health Network; Toronto Ontario Canada
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32
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Cytopathologie moléculaire. Outils et applications. Ann Pathol 2012. [DOI: 10.1016/j.annpat.2012.09.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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Schmitt FC, Vielh P. Molecular biology and cytopathology. Principles and applications. Ann Pathol 2012; 32:e57-63, 444-50. [DOI: 10.1016/j.annpat.2012.09.210] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Accepted: 09/13/2012] [Indexed: 01/15/2023]
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Bode B, Tinguely M. [Role of cytology in hematopathological diagnostics]. DER PATHOLOGE 2012; 33:316-23. [PMID: 22684275 DOI: 10.1007/s00292-012-1580-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The role of cytology has so far been underrecognized in the diagnostic process of hematopathological questions. This article presents an algorithm which allows a stepwise work-up of cytology specimens obtained by minimally invasive ultrasound-guided fine needle aspiration in patients with unexplained lymph node swelling. Moreover, it is shown how the selective separation of cytology specimens allows the application of immunophenotypic analysis including flow cytometry and immunohistochemistry as well as molecular analyses, such as fluorescence in situ hybridization (FISH) and polymerase chain reaction (PCR) strategies. With the integrative procedure presented, cytology offers an excellent cost-effective tool for the diagnostic approach of patients with suspected hematopathological malignancies allowing a high diagnostic accuracy, ideal for initial diagnosis or follow-up.
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Affiliation(s)
- B Bode
- Institut für Klinische Pathologie, Universtitätsspital Zürich, Schmelzbergstr. 12, 8091, Zürich, Schweiz.
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35
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Cecic IK, Li G, MacAulay C. Technologies supporting analytical cytology: clinical, research and drug discovery applications. JOURNAL OF BIOPHOTONICS 2012; 5:313-326. [PMID: 22271675 DOI: 10.1002/jbio.201100093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 12/08/2011] [Accepted: 12/30/2011] [Indexed: 05/31/2023]
Abstract
The tools and techniques developed for analytical cytology have become invaluable in expanding the development of cancer screening programs and biomarker discovery for personalized medicine. Detecting cellular, molecular, and functional changes of diseased tissue as defined by quantitative analytical methodologies has enhanced the field of medical diagnostics and prognostics. The focus of this review is to outline applications and recent technical advances in flow cytometry, laser scanning cytometry, image cytometry, and quantitative image analysis, as they pertain to clinical, research, and drug discovery applications.
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Affiliation(s)
- Ivana K Cecic
- Integrative Oncology Department, BC Cancer Research Centre, Vancouver, BC, Canada
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