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Vigliar E, Acanfora G, Iaccarino A, Mascolo M, Russo D, Scalia G, Della Pepa R, Bellevicine C, Picardi M, Troncone G. A Novel Approach to Classification and Reporting of Lymph Node Fine-Needle Cytology: Application of the Proposed Sydney System. Diagnostics (Basel) 2021; 11:diagnostics11081314. [PMID: 34441249 PMCID: PMC8393909 DOI: 10.3390/diagnostics11081314] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/16/2021] [Accepted: 07/20/2021] [Indexed: 12/11/2022] Open
Abstract
Fine-needle cytology (FNC) is a useful diagnostic tool in the first line evaluation of lymphadenopathy of unknown aetiology. Nevertheless, considering the large number of conditions presenting as lymphadenopathy, lymph node cytology represents a challenging scenario. Recently, an expert panel published the proposal of the Sydney system for performing classification and reporting of lymph node cytopathology; the aim of the present study was to evaluate the applicability of this system. Thus, 300 lymph node FNCs performed over 1 year were reviewed and categorized according to the Sydney system classification. Overall, n = 20 cases (6.7%) were categorized as L1-inadequate/non-diagnostic; n = 104 (34.7%) as benign (L2); n = 25 (8.3%) as atypical (L3); n = 13 (4.3%) as suspicious (L4), and n = 138 (46%) as malignant (L5). FNC diagnoses were correlated with histopathologic and clinical follow-up to assess the diagnostic accuracy and the risk of malignancy (ROM) for each diagnostic category. Statistical analysis showed the following results: sensitivity 98.47%, specificity 95.33%, positive predictive value 96.27%, negative predictive value 98.08%, and accuracy 97.06%. The ROM was 50% for the category L1, 1.92% for L2, 58.3% for L3, and 100% for L4 and L5. In conclusion, FNC coupled with ancillary techniques ensures satisfactory diagnostic accuracy and the implementation of the Sydney system may improve the practice of cytopathologists.
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Affiliation(s)
- Elena Vigliar
- Department of Public Health, University of Naples “Federico II”, 80131 Naples, Italy; (E.V.); (A.I.); (C.B.)
| | - Gennaro Acanfora
- Department of Advanced Biomedical Sciences, University of Naples “Federico II”, 80131 Naples, Italy; (G.A.); (M.M.); (D.R.)
| | - Antonino Iaccarino
- Department of Public Health, University of Naples “Federico II”, 80131 Naples, Italy; (E.V.); (A.I.); (C.B.)
| | - Massimo Mascolo
- Department of Advanced Biomedical Sciences, University of Naples “Federico II”, 80131 Naples, Italy; (G.A.); (M.M.); (D.R.)
| | - Daniela Russo
- Department of Advanced Biomedical Sciences, University of Naples “Federico II”, 80131 Naples, Italy; (G.A.); (M.M.); (D.R.)
| | - Giulia Scalia
- Laboratory of Clinical Research and Advanced Diagnostics, CEINGE Biotecnologie Avanzate, 80131 Naples, Italy;
| | - Roberta Della Pepa
- Department of Clinical Medicine and Surgery, Hematology Section, University of Naples “Federico II”, 80131 Naples, Italy; (R.D.P.); (M.P.)
| | - Claudio Bellevicine
- Department of Public Health, University of Naples “Federico II”, 80131 Naples, Italy; (E.V.); (A.I.); (C.B.)
| | - Marco Picardi
- Department of Clinical Medicine and Surgery, Hematology Section, University of Naples “Federico II”, 80131 Naples, Italy; (R.D.P.); (M.P.)
| | - Giancarlo Troncone
- Department of Public Health, University of Naples “Federico II”, 80131 Naples, Italy; (E.V.); (A.I.); (C.B.)
- Correspondence:
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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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3
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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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4
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Cozzolino I, Vitagliano G, Caputo A, Montella M, Franco R, Ciancia G, Selleri C, Zeppa P. CD15, CD30, and PAX5 evaluation in Hodgkin's lymphoma on fine-needle aspiration cytology samples. Diagn Cytopathol 2019; 48:211-216. [PMID: 31825183 DOI: 10.1002/dc.24366] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 11/16/2019] [Accepted: 12/02/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND The phenotypical identification of diagnostic cells is crucial for the diagnosis of Hodgkin's lymphoma (HL) on fine-needle aspiration cytology (FNAC). The aim of this study is to evaluate the immunocytochemical (ICC) expression of CD30, CD15, and PAX5 in Hodgkin's cells (HC) and Reed-Sternberg cells (RSC) on smears and cell-blocks (CB) of HL and to compare the performance of each antibody on smears and CB. METHODS In 21 FNAC cases of histologically confirmed classical HL, ICC identification of HC and RSC was performed using CD15, CD30, and PAX5 on smears and CB, respectively. RESULTS CD30 was positive in 19/21 cases (90.5%; 11/11 smears and 8/10 CB), CD15 was positive in 14/21 cases (66.7%; 5/11 smears and 9/10 CB), and PAX5 was positive in 13/21 cases (61.9%; 9/11 smears and 4/10CB). CONCLUSIONS CD15, CD30, and PAX5 are useful to the FNAC identification of HC and RSC. CD30 is the most sensitive, followed by CD15 and PAX5, which are more effective on CB and smears, respectively.
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Affiliation(s)
- Immacolata Cozzolino
- Department of Physical and Mental Health and Preventive Medicine School of Medicine and Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Giulio Vitagliano
- Department of Pathology, University of Salerno, University of Napoli "Federico II", Fisciano SA, Italy
| | - Alessandro Caputo
- Department of Medicine and Surgery, University of Salerno, Fisciano SA, Italy
| | - Marco Montella
- Department of Physical and Mental Health and Preventive Medicine School of Medicine and Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Renato Franco
- Department of Physical and Mental Health and Preventive Medicine School of Medicine and Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Giuseppe Ciancia
- Department of Medicine and Surgery, University of Salerno, Fisciano SA, Italy
| | - Carmine Selleri
- Department of Medicine and Surgery, University of Salerno, Fisciano SA, Italy
| | - Pio Zeppa
- Department of Medicine and Surgery, University of Salerno, Fisciano SA, Italy
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5
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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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6
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Vitagliano G, Santoro G, Landolfi L, Cozzolino I, Peluso AL, Ieni A, Selleri C, Zeppa P. Fine‐needle cytology of intraglandular parotid lymph node: A useful procedure in the management of salivary gland nodules. Diagn Cytopathol 2019; 47:695-700. [DOI: 10.1002/dc.24177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/16/2019] [Accepted: 03/07/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Giulio Vitagliano
- Dipartimento di Sanità PubblicaUniversity of Naples “Federico II” Naples Italy
| | - Giuseppe Santoro
- Medicine and SurgeryAzienda Ospedaliera Universitaria San Giovanni di Dio e Ruggi d'Aragona Salerno Italy
| | - Luigi Landolfi
- Medicine and SurgeryAzienda Ospedaliera Universitaria San Giovanni di Dio e Ruggi d'Aragona Salerno Italy
| | - Immacolata Cozzolino
- Dipartimento di Salute Mentale e Fisica e MedicinaUniversità degli studi della Campania Luigi Vanvitelli Naples Italy
| | - Anna L. Peluso
- Dipartimento di Medicina e ChirurgiaUniversità di Salerno Salerno Italy
| | - Antonio Ieni
- Department of Human PathologyUniversity of Messina Messina Italy
| | - Carmine Selleri
- Dipartimento di Medicina e ChirurgiaUniversità di Salerno Salerno Italy
| | - Pio Zeppa
- Dipartimento di Medicina e ChirurgiaUniversità di Salerno Salerno Italy
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Wu SG, Pan W, Liu H, Byrne-Steele ML, Brown B, Depinet M, Hou X, Han J, Li S. High throughput sequencing of T-cell receptor repertoire using dry blood spots. J Transl Med 2019; 17:47. [PMID: 30777078 PMCID: PMC6379990 DOI: 10.1186/s12967-019-1796-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 02/09/2019] [Indexed: 11/12/2022] Open
Abstract
Background Immunology research, particularly next generation sequencing (NGS) of the immune T-cell receptor β (TCRβ) repertoire, has advanced progression in several fields, including treatment of various cancers and autoimmune diseases. This study aimed to identify the TCR repertoires from dry blood spots (DBS), a method that will help collecting real-world data for biomarker applications. Methods Finger-prick blood was collected onto a Whatman filter card. RNA was extracted from DBS of the filter card, and fully automated multiplex PCR was performed to generate a TCRβ chain library for next generation sequencing (NGS) analysis of unique CDR3s (uCDR3). Results We demonstrated that the dominant clonotypes from the DBS results recapitulated those found in whole blood. According to the statistical analysis and laboratory confirmation, 40 of 2-mm punch disks from the filter cards were enough to detect the shared top clones and have strong correlation in the uCDR3 discovery with whole blood. uCDR3 discovery was neither affected by storage temperatures (room temperature versus − 20 °C) nor storage durations (1, 14, and 28 days) when compared to whole blood. About 74–90% of top 50 uCDR3 clones of whole blood could also be detected from DBS. A low rate of clonotype sharing, 0.03–1.5%, was found among different individuals. Conclusions The DBS-based TCR repertoire profiling method is minimally invasive, provides convenient sampling, and incorporates fully automated library preparation. The system is sensitive to low RNA input, and the results are highly correlated with whole blood uCDR3 discovery allowing study scale-up to better understand the relationship and mutual influences between the immune and diseases. Electronic supplementary material The online version of this article (10.1186/s12967-019-1796-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shang-Gin Wu
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University, Taipei, 10002, Taiwan.,Department of Internal Medicine, National Taiwan University Cancer Center, National Taiwan University, Taipei, 10672, Taiwan
| | - Wenjing Pan
- HudsonAlpha Institute for Biotechnology, 601 Genome Way, Huntsville, AL, 35806, USA.,iRepertoire Inc., 800 Hudson Way Suite 2319, Huntsville, AL, 35806, USA
| | - Hongna Liu
- iCubate Inc., Huntsville, AL, 35806, USA
| | | | - Brittany Brown
- iRepertoire Inc., 800 Hudson Way Suite 2319, Huntsville, AL, 35806, USA
| | - Mollye Depinet
- iRepertoire Inc., 800 Hudson Way Suite 2319, Huntsville, AL, 35806, USA
| | - Xiaohong Hou
- iRepertoire Inc., 800 Hudson Way Suite 2319, Huntsville, AL, 35806, USA
| | - Jian Han
- HudsonAlpha Institute for Biotechnology, 601 Genome Way, Huntsville, AL, 35806, USA. .,iRepertoire Inc., 800 Hudson Way Suite 2319, Huntsville, AL, 35806, USA.
| | - Song Li
- iRepertoire Inc., 800 Hudson Way Suite 2319, Huntsville, AL, 35806, USA.
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da Cunha Santos G, Saieg MA, Troncone G, Zeppa P. Cytological preparations for molecular analysis: A review of technical procedures, advantages and limitations for referring samples for testing. Cytopathology 2019; 29:125-132. [PMID: 29575423 DOI: 10.1111/cyt.12534] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2018] [Indexed: 12/12/2022]
Abstract
Minimally invasive procedures such as endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) must yield not only good quality and quantity of material for morphological assessment, but also an adequate sample for analysis of molecular markers to guide patients to appropriate targeted therapies. In this context, cytopathologists worldwide should be familiar with minimum requirements for refereeing cytological samples for testing. The present manuscript is a review with comprehensive description of the content of the workshop entitled Cytological preparations for molecular analysis: pre-analytical issues for EBUS TBNA, presented at the 40th European Congress of Cytopathology in Liverpool, UK. The present review emphasises the advantages and limitations of different types of cytology substrates used for molecular analysis such as archival smears, liquid-based preparations, archival cytospin preparations and FTA (Flinders Technology Associates) cards, as well as their technical requirements/features. These various types of cytological specimens can be successfully used for an extensive array of molecular studies, but the quality and quantity of extracted nucleic acids rely directly on adequate pre-analytical assessment of those samples. In this setting, cytopathologists must not only be familiar with the different types of specimens and associated technical procedures, but also correctly handle the material provided by minimally invasive procedures, ensuring that there is sufficient amount of material for a precise diagnosis and correct management of the patient through personalised care.
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Affiliation(s)
- G da Cunha Santos
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.,Laboratory Medicine Program, University Health Network, Toronto, ON, Canada
| | - M A Saieg
- Department of Pathology, Santa Casa Medical School, São Paulo, Brazil.,Department of Pathology, AC Camargo Cancer Center, São Paulo, Brazil
| | - G Troncone
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - P Zeppa
- Department of Medicine and Surgery, University of Salerno, Salerno, Italy
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9
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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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10
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da Cunha Santos G. FTA Cards for Preservation of Nucleic Acids for Molecular Assays: A Review on the Use of Cytologic/Tissue Samples. Arch Pathol Lab Med 2018; 142:308-312. [DOI: 10.5858/arpa.2017-0303-ra] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Context.—
Traditional methods for storing histologic and cytologic specimens for future use in molecular assays have consisted of either snap-freezing with cryopreservation or formalin-fixing, paraffin-embedding the samples. Although snap-freezing with cryopreservation is recommended for better preservation of nucleic acids, the infrastructure and space required for archiving impose challenges for high-volume pathology laboratories. Cost-effective, long-term storage at room temperature; relatively easy shipment; and standardized handling can be achieved with formalin-fixed, paraffin-embedded samples, but formalin fixation induces fragmentation and chemical modification of nucleic acids. Advances in next-generation sequencing platforms, coupled with an increase in diagnostic, prognostic, and predictive molecular biomarkers have created a demand for high-quality nucleic acids. To address issues of the quality of nucleic acid and logistics in sample acquisition, alternatives for specimen preservation and long-term storage have been described and include novel universal tissue fixatives, stabilizers, and technologies.
Objective.—
To collect, retrieve, and review information from studies describing the use of nucleic acids recovered from cytologic/tissue specimens stored on Flinders Technology Associates (FTA, GE Whatman, Maidstone, Kent, United Kingdom) cards for downstream molecular applications.
Data Sources.—
An electronic literature search in the PubMed (National Center for Biotechnology Information, Bethesda, Maryland) database allowed the selection of manuscripts addressing the use of FTA cards for storage of cytologic samples for molecular analysis. Only articles published in English were retrieved.
Conclusions.—
The use of FTA cards is a versatile method for fostering multicenter, international collaborations and clinical trials that require centralized testing, long-distance shipment, and high-quality nucleic acids for molecular techniques. Studies with controlled temperature are required to test the quality of recovered RNA after long-term storage.
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Affiliation(s)
- Gilda da Cunha Santos
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, University Health Network, Toronto, Ontario, Canada
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