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1.
Acad Pathol ; 11(2): 100111, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38560424

RESUMO

Entrustable professional activities (EPAs) are observable activities that define the practice of medicine and provide a framework of evaluation that has been incorporated into US medical school curricula in both undergraduate and graduate medical education. This manuscript describes the development of an entrustment scale and formative and summative evaluations for pathology EPAs, outlines a process for faculty development that was employed in a pilot study implementing two Anatomic Pathology and two Clinical Pathology EPAs in volunteer pathology residency programs, and provides initial validation data for the proposed pathology entrustment scales. Prior to implementation, faculty development was necessary to train faculty on the entrustment scale for each given activity. A "train the trainer" model used performance dimension training and frame of reference training to train key faculty at each institution. The session utilized vignettes to practice determination of entrustment ratings and development of feedback for trainees as to strengths and weaknesses in the performance of these activities. Validity of the entrustment scale is discussed using the Messick framework, based on concepts of content, response process, and internal structure. This model of entrustment scales, formative and summative assessments, and faculty development can be utilized for any pathology EPA and provides a roadmap for programs to design and implement EPA assessments into pathology residency training.

2.
Acad Pathol ; 11(2): 100110, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38560425

RESUMO

Entrustable professional activities (EPAs) are observable clinical skills and/or procedures that have been introduced into medical education at the student and resident levels in most specialties to determine readiness to advance into residency or independent practice, respectively. This publication describes the process and outcomes of a pilot study looking at the feasibility of using two anatomic pathology and two clinical pathology EPAs in pathology residency in 6 pathology residency programs that volunteered for the study. Faculty development on EPAs and their assessment was provided to pilot program faculty, and EPA assessment tools were developed and used by the pilot programs. Pre- and post-study surveys were given to participating residents, faculty, and program directors to gauge baseline practices and to gather feedback on the EPA implementation experience. Results demonstrated overall good feasibility in implementing EPAs. Faculty acceptance of EPAs varied and was less than that of program directors. Residents reported a significant increase in the frequency with which faculty provided formative assessments that included specific examples of performance and specific ways to improve, as well as increased frequency with which faculty provided summative assessments that included specific ways to improve. EPAs offered the most benefit in setting clear expectations for performance of each task, for providing more specific feedback to residents, and in increasing Program director's understanding of resident strengths abilities and weaknesses.

3.
Acad Pathol ; 10(2): 100073, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37124364

RESUMO

There has been a significant decline in the number of United States allopathic medical students matching to pathology residency programs. Data acquired from the American Association of Medical Colleges (AAMC) show sustained variation in the medical school production of students who go on to pathology residency. When divided into groups based on the medical school's historical volume of graduates entering pathology, the schools in groups labeled Group 1 and Group 2 produced significantly higher and lower proportions of pathology residents, respectively. This study aimed to identify what medical school curriculum elements and other medical school characteristics might explain the differences observed in the AAMC data. The Dean or another undergraduate medical education contact from the Group 1 and Group 2 schools was invited to participate in an interview. Pathology Program Directors and Pathology Department Chairs were also included in communications. Thirty interviews were completed with equal numbers from each group. Interview questions probed pathology experiences, existence, and structure of a pathology interest group, options for post-sophomore fellowships, recent curriculum changes, and the extent of mentoring programs. Surprisingly, the curriculum does not appear to be a predictor of a medical school's production of students who enter pathology residency. A significantly greater percentage of Group 1 schools are public institutions compared to Group 2 schools. Other factors that may increase the number of students who go into pathology include mentoring, active learning versus observation, and post-sophomore fellowships or other opportunities to work in the capacity of a new pathology resident.

4.
Arch Pathol Lab Med ; 145(9): 1117-1122, 2021 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-33417677

RESUMO

CONTEXT.­: An aging population calls for an adequate response in the workforce of medical professionals. The field of pathology has seen a downward trend in numbers of graduating US allopathic medical students choosing the specialty. Concerns about the job market after residency and fellowship graduation may be a contributing factor. OBJECTIVE.­: To provide an update on the trends emerging from a survey of pathology graduates' job search experience for their first nonfellowship position. DESIGN.­: Data from an annual job search survey sent by the College of American Pathologists Graduate Medical Education Committee between 2017 and 2019 to College of American Pathologists junior members and fellows in practice 3 years or less actively looking for a nonfellowship position was analyzed. Various indicators of the job search experience were compared year to year and with the previously published 2012 to 2016 benchmark data. RESULTS.­: Analysis revealed positive trends between the 2017 to 2019 data and the 2012 to 2016 benchmark data, including participants' perceiving more ease in finding a position, improved availability of jobs in their subspecialty choice, and higher ratings of satisfaction with the position accepted, as well as a greater proportion of respondents finding a position within 6 months of initiating their job search. CONCLUSIONS.­: The job market for pathology residents and fellows looking for their first nonfellowship position has improved with respect to multiple indicators, such as ease of finding a position, length of job search, and satisfaction with the position accepted when comparing 2017 to 2019 data with the 2012 to 2016 benchmark data.


Assuntos
Emprego/estatística & dados numéricos , Patologistas , Adulto , Feminino , Humanos , Masculino , Inquéritos e Questionários
5.
Acad Pathol ; 7: 2374289520951924, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33110939

RESUMO

The SARS-CoV-2 pandemic has highlighted the crucial role of pathologists in the health care system at a time of significant decline in the number of US medical students matching to pathology residency positions. To understand this decline, a national survey of fourth-year US allopathic medical students was conducted to assess experiences, knowledge, and attitudes of pathology and factors that impact specialty choice. Participating in a separate pathology course did not increase the probability of choosing pathology. Experiences significantly associated with choosing pathology included clinical or research opportunities in pathology during the last 2 years of medical school, autopsy observation/participation, and participation in pathology interest groups. Many respondents felt they were not sufficiently exposed to pathology to consider it as a specialty. Those who considered pathology but did not choose it were less likely to report understanding the activities of pathologists and being recruited by pathology faculty and more likely to express a preference for more direct patient contact as compared to those entering pathology. In general, respondents agreed that pathology has a good work-life balance and a satisfying degree of intellectual challenge. On the other hand, respondents generally agreed that information on social media and perception of the pathology job market do not seem to be positive and few agreed that pathology is a highly regarded specialty. We identify steps to address these issues and increase the number of US medical students choosing pathology as a specialty crucial to the future of medicine and public health.

6.
Acad Pathol ; 7: 2374289520901833, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32083168

RESUMO

The pathologist workforce in the United States is a topic of interest to the health-care community as a whole and to institutions responsible for the training of new pathologists in particular. Although a pathologist shortage has been projected, there has been a pervasive belief by medical students and their advisors that there are "no jobs in pathology." In 2013 and again in 2017, the Program Directors Section of the Association of Pathology Chairs conducted surveys asking pathology residency directors to report the employment status of each of their residents graduating in the previous 5 years. The 2013 Program Directors Section survey indicated that 92% of those graduating in 2010 had obtained employment within 3 years, and 94% of residents graduating in 2008 obtained employment within 5 years. The 2017 survey indicated that 96% of those graduating in 2014 had obtained employment in 3 years, and 97% of residents graduating in 2012 obtained positions within 5 years. These findings are consistent with residents doing 1 or 2 years of fellowship before obtaining employment. Stratification of the data by regions of the country or by the size of the residency programs does not show large differences. The data also indicate a high percentage of employment for graduates of pathology residency programs and a stable job market over the years covered by the surveys.

7.
Arch Pathol Lab Med ; 144(4): 427-434, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31596620

RESUMO

CONTEXT.­: There is an ongoing perception that the pathology job market is poor, which may be discouraging medical students from pursuing the specialty. Academic pathologists believe that jobs are available but relocation may be necessary. OBJECTIVE.­: To identify trends regarding the geographic relocation of pathologists taking their first job after training. DESIGN.­: The College of American Pathologists (CAP) Graduate Medical Education Committee has sent an annual job search survey from 2012-2016 to CAP junior members and fellows in practice for 3 years or less and seeking their first job. Data were analyzed across demographics and geographic domains consisting of the following: stayed at same institution/city, relocated within the same region, or relocated to a different region. Standard statistical methods were used. RESULTS.­: Of 501 respondents, 421 reported completing combined anatomic pathology (AP)/clinical pathology (CP) training, while 80 reported AP- or CP-only training. Of the 421 AP/CP respondents, 109 (26%) stayed at the same institution or city, while of the 80 AP- or CP-only respondents, 36 (45%) stayed at the same institution or city. One hundred ninety-nine respondents completed surgical pathology fellowships with 124 (62%) general/oncologic surgical pathology and 75 (38%) subspecialty surgical pathology trainees. Job seekers who completed general surgical pathology/surgical oncologic pathology fellowship accounted for 34 of 52 (65%) of those remaining at the same institution or city, while those with subspecialty training accounted for 40 of 77 (52%) of those relocating to a different region. Relocation did not demonstrate any significant trends in regard to other demographics studied. CONCLUSIONS.­: The pathology job market appears stable with no precedent for geographic hardship.


Assuntos
Patologistas/provisão & distribuição , Patologia Clínica/tendências , Mobilidade Ocupacional , Emprego/estatística & dados numéricos , Humanos , Inquéritos e Questionários
8.
Arch Pathol Lab Med ; 144(4): 435-442, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31816267

RESUMO

CONTEXT.­: Gender-based barriers to equal salary, career advancement, and leadership still exist in medicine. Herein we provide the first report of data comparing the experiences of men and women seeking their first nonfellowship position in pathology. OBJECTIVE.­: To identify gender trends regarding pathologists taking their first job after training and the relationship to various demographic factors, job search satisfaction, and outcome. DESIGN.­: Aggregate data from the College of American Pathologists Graduate Medical Education Committee Job Market surveys (2015-2018) were analyzed across multiple domains including residency focus, number and subspecialty of fellowships completed, and extent to which expectations were met in regard to work duties, geographic preference, benefits, and salary. These data were examined in the context of assessing gender-based differences. RESULTS.­: Comparable results were identified in all measured outcomes according to gender. There were no differences between gender and medical school type, relocation, residency training focus, number of fellowships completed, overall satisfaction with position accepted, salary, or extent to which the position met expectations. Similarly, there were also no discrepancies between gender and the geographic region in which positions were accepted, practice setting, practice subspecialty, partnership track, length of job search, or difficulty finding a position. CONCLUSIONS.­: Analysis from 4 years of job market survey data shows equivalent results between men and women looking for their first nonfellowship position in pathology. There were no significant differences with regard to difficulty finding a position, overall satisfaction with the position accepted, salary, benefits, or access to partnership track.


Assuntos
Patologistas , Patologia Clínica/estatística & dados numéricos , Sexismo/estatística & dados numéricos , Mobilidade Ocupacional , Emprego/estatística & dados numéricos , Feminino , Humanos , Masculino , Inquéritos e Questionários
9.
Arch Pathol Lab Med ; 143(9): 1093-1105, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-30917045

RESUMO

CONTEXT.­: Even though immunohistochemistry is routinely used by pathologists, evaluation of immunohistochemistry in splenic lesions remains difficult for many. Classification of benign and splenic lesions often requires a combination of hematoxylin-eosin evaluation, immunophenotyping, and sometimes molecular testing. Immunohistochemical staining is essential in evaluating many splenic lesions, and requires an understanding of the normal compartments of the spleen. OBJECTIVE.­: To address different immunohistochemical features used for identification and subclassification of different lesions of the spleen, as well as in the normal compartments of the spleen. DATA SOURCES.­: The information outlined in this review article is based on our experiences with a variety of spleen cases, on the current World Health Organization classification of hematopoietic and lymphoid tumors, and on a review of English-language articles published during 2018. CONCLUSIONS.­: Features for phenotyping normal spleen as well as a variety of splenic lesions, including littoral cell angioma and splenic marginal zone lymphoma, are discussed. Suggested immunopanels are provided to assist in the diagnosis of different lesions of the spleen.


Assuntos
Imuno-Histoquímica/métodos , Imunofenotipagem/métodos , Baço/imunologia , Baço/metabolismo , Esplenopatias/diagnóstico , Antígenos de Superfície/análise , Diagnóstico Diferencial , Citometria de Fluxo , Hemangioma/classificação , Hemangioma/diagnóstico , Humanos , Linfoma/classificação , Linfoma/diagnóstico , Transtornos Linfoproliferativos/diagnóstico , Baço/patologia , Esplenopatias/classificação , Neoplasias Esplênicas/classificação , Neoplasias Esplênicas/diagnóstico
10.
Acad Pathol ; 5: 2374289518773493, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30014035

RESUMO

Professionalism and physician well-being are important topics in academic medicine. Lapses in professional judgment may lead to disciplinary action and put patient's health at risk. Within medical education, students and trainees are exposed to professionalism in the institution's formal curriculum and hidden curriculum. Development of professionalism starts early in medical school. Trainees entering graduate medical education already have developed professional behavior. As a learned behavior, development of professional behavior is modifiable. In addition to role modeling by faculty, other modalities are needed. Use of case vignettes based on real-life issues encountered in trainee and faculty behavior can serve as a basis for continued development of professionalism in trainees. Based on the experience of program directors and pathology educators, case vignettes were developed in the domains of service, research, and education and subdivided into the areas of duty, integrity, and respect. General and specific questions pertaining to each case were generated to reinforce model behavior and overcome professionalism issues encountered in the hidden curriculum. To address physician burnout, cases were generated to provide trainees with the skills to deal with burnout and promote well-being.

11.
Arch Pathol Lab Med ; 142(4): 490-495, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29210592

RESUMO

CONTEXT: - Pathology residents and fellows tailor their training and job search strategies to an actively evolving specialty in the setting of scientific and technical advances and simultaneous changes in health care economics. OBJECTIVE: - To assess the experience and outcome of the job search process of pathologists searching for their first non-fellowship position. DESIGN: - The College of American Pathologists (CAP) Graduate Medical Education Committee has during the past 5 years sent an annual job search survey each June to CAP junior members and fellows in practice 3 years or less who have actively searched for a non-fellowship position. RESULTS: - Job market indicators including job interviews, job offers, positions accepted, and job satisfaction have remained stable during the 5 years of the survey. Most survey respondents who had applied for at least 1 position had accepted a position at the time of the survey, and most applicants who had accepted a position were satisfied or very satisfied. However, most attested that finding a non-fellowship position was difficult. Despite a perceived push toward subspecialization in surgical pathology, the reported number of fellowships completed was stable. Respondent demographics were not associated with job search success with 1 significant exception: international medical school graduate respondents reported greater perceived difficulty in finding a position, and indeed, fewer reported having accepted a position. CONCLUSIONS: - Pathology residents and fellows seeking their first position have faced a relatively stable job market during the last 5 years, with most accepting positions with which they were satisfied.


Assuntos
Emprego/estatística & dados numéricos , Internato e Residência/estatística & dados numéricos , Satisfação no Emprego , Patologistas/estatística & dados numéricos , Bolsas de Estudo/estatística & dados numéricos , Humanos , Inquéritos e Questionários , Estados Unidos
12.
Acad Pathol ; 4: 2374289517714283, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28725792

RESUMO

Competency-based medical education has evolved over the past decades to include the Accreditation Council for Graduate Medical Education Accreditation System of resident evaluation based on the Milestones project. Entrustable professional activities represent another means to determine learner proficiency and evaluate educational outcomes in the workplace and training environment. The objective of this project was to develop entrustable professional activities for pathology graduate medical education encompassing primary anatomic and clinical pathology residency training. The Graduate Medical Education Committee of the College of American Pathologists met over the course of 2 years to identify and define entrustable professional activities for pathology graduate medical education. Nineteen entrustable professional activities were developed, including 7 for anatomic pathology, 4 for clinical pathology, and 8 that apply to both disciplines with 5 of these concerning laboratory management. The content defined for each entrustable professional activity includes the entrustable professional activity title, a description of the knowledge and skills required for competent performance, mapping to relevant Accreditation Council for Graduate Medical Education Milestone subcompetencies, and general assessment methods. Many critical activities that define the practice of pathology fit well within the entrustable professional activity model. The entrustable professional activities outlined by the Graduate Medical Education Committee are meant to provide an initial framework for the development of entrustable professional activity-related assessment and curricular tools for pathology residency training.

13.
Arch Pathol Lab Med ; 141(10): 1394-1401, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28686498

RESUMO

CONTEXT: - Changes occurring in medicine have raised issues about medical professionalism. Professionalism is included in the Core Competencies and Milestones for all pathology residents. Previous studies have looked at resident professionalism attitudes and behaviors in primary care but none have looked specifically at pathology. OBJECTIVE: - To examine behavior and attitudes toward professionalism within pathology and to determine how professionalism is taught in residency programs. DESIGN: - Surveys were sent to all College of American Pathologists junior members and all pathology residency program directors, and responses were compared. RESULTS: - Although no single behavior received the same professionalism rating among residents and program directors, both groups identified the same behaviors as being the most unprofessional: posting identifiable patient information or case images to social media, making a disparaging comment about a physician colleague or member of the support staff on social media or in a public hospital space, and missing work without reporting the time off. Faculty were observed displaying most of these behaviors as often or more often than residents by both groups. The most common means to teach professionalism in pathology residencies is providing feedback as situations arise and teaching by example. Age differences were found within each group and between groups for observed behaviors and attitudes. CONCLUSIONS: - As teaching by example was identified as a common educational method, faculty must be aware of the role their behavior and attitudes have in shaping resident behavior and attitudes. These results suggest a need for additional resources to teach professionalism during pathology residency.


Assuntos
Atitude do Pessoal de Saúde , Internato e Residência , Patologia/educação , Profissionalismo/educação , Adulto , Educação de Pós-Graduação em Medicina , Docentes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
14.
Arch Pathol Lab Med ; 141(2): 193-202, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26430810

RESUMO

CONTEXT: -Multiple sources have identified challenges that training programs face in preparing graduates for the "real world" practice of pathology, and many training programs have sought to decrease the gap between skills acquired during training and those required in practice. However, there exists the possibility that some of the difficulty experienced by newly trained pathologists and employers might arise from differences between employer expectations of new hires and what applicants expect from their first job. OBJECTIVE: -To define the constellation of skills and attributes employers prioritize when hiring newly trained pathologists. DESIGN: -A survey of fellows of the College of American Pathologists in practice for 5 or more years in the United States was administered and the results were analyzed. RESULTS: -A total of 630 pathologists who were responsible for hiring a new-in-practice pathologist completed the survey. Regardless of practice setting, certain skills and attributes were rated critically important in new hires, including ethics/integrity, work ethic, and professionalism. Seventy-one percent reported having some difficulty hiring entry-level pathologists and cited inadequate training/experience during residency, and applicants having unrealistic expectations regarding work load/hours as the most common reasons. CONCLUSIONS: -Prospective employers not only expect well-developed diagnostic skills in their job applicants, but also require evidence of a strong work ethic and outstanding professionalism. Successful applicants must display willingness to assume responsibilities and flexibility regarding existing and new responsibilities. A secondary but important finding of this survey was that most jobs are garnered through word-of-mouth recommendations; therefore, it is crucial for pathologists-in-training to hone their networking skills.


Assuntos
Competência Clínica , Patologistas , Educação de Pós-Graduação em Medicina , Humanos , Patologia/educação , Inquéritos e Questionários
15.
Arch Pathol Lab Med ; 141(2): 215-219, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27763788

RESUMO

CONTEXT: -Professionalism issues in residency training can be difficult to assess and manage. Generational or role-based differences may also exist between faculty and residents as to what constitutes unprofessional behavior and how to manage it. OBJECTIVE: -To examine and compare how faculty and residents would approach the same 5 case scenarios detailing various aspects of unprofessional behavior. DESIGN: -Five case scenarios highlighting various unprofessional behaviors were presented in a workshop at an annual meeting of pathology department chairs, residency program directors, and undergraduate pathology medical educators (ie, pathologists involved in medical student pathology education). The same cases were presented to a cohort of pathology residents currently in training. A standard set of responses were offered to the participants, polling results were collected electronically, and results were compared. RESULTS: -Faculty and residents were fairly consistent within their respective groups. In a subset of cases, faculty were more likely to favor working with the individual in the scenario, whereas resident respondents were more likely to favor either no response or a severe response. Generational or role-based differences were also potentially evident. CONCLUSIONS: -Assessing expectations and differences around professionalism for both faculty and residents should be considered as part of any educational and management approach for professionalism. Although a level of generational differences appears to be evident in this study regarding the recognition and management of unprofessional behavior, there was also agreement in some cases. Further exploration into the discrepant responses between faculty and residents may prove useful in developing educational, assessment, and remediation resources.


Assuntos
Avaliação Educacional/métodos , Internato e Residência , Patologistas , Profissionalismo , Educação de Pós-Graduação em Medicina/métodos , Humanos
16.
Acad Pathol ; 2(3): 2374289515592887, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-28725747

RESUMO

Professionalism issues are common in residency training and can be very difficult to recognize and manage. Almost one-third of the milestones for pathology recently instituted by the Accreditation Council for Graduate Medical Education encompass aspects of professionalism. Program directors are often unsure of how and when to remediate residents for unprofessional behavior. We used a case-based educational approach in a workshop setting to assist program directors in the management of unprofessional behavior in residents. Eight case scenarios highlighting various aspects of unprofessional behavior by pathology residents were developed and presented in an open workshop forum at the annual pathology program director's meeting. Prior to the workshop, 2 surveys were conducted: (1) to collect data on program directors' experience with identifying, assessing, and managing unprofessional behavior in their residents and (2) to get feedback from workshop registrants on how they would manage each of the 8 case scenarios. A wide range of unprofessional behaviors have been observed by pathology program directors. Although there is occasionally general agreement on how to manage specific behaviors, there remains wide variation in how to manage many of the presented unprofessional behaviors. Remediation for unprofessional behavior in pathology residents remains a difficult and challenging process. Additional education and research in this area are warranted.

17.
Arch Pathol Lab Med ; 138(3): 307-15, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24576024

RESUMO

CONTEXT: In the late 1990s, the Accreditation Council for Graduate Medical Education developed the Outcomes Project and the 6 general competencies with the intent to improve the outcome of graduate medical education in the United States. The competencies were used as the basis for developing learning goals and objectives and tools to evaluate residents' performance. By the mid-2000s the stakeholders in resident education and the general public felt that the Outcomes Project had fallen short of expectations. OBJECTIVE: To develop a new evaluation method to track trainee progress throughout residency using benchmarks called milestones. A change in leadership at the Accreditation Council for Graduate Medical Education brought a new vision for the accreditation of training programs and a radically different approach to the evaluation of residents. DATA SOURCES: The Pathology Milestones Working Group reviewed examples of developing milestones in other specialties, the literature, and the Accreditation Council for Graduate Medical Education program requirements for pathology to develop pathology milestones. The pathology milestones are a set of objective descriptors for measuring progress in the development of competency in patient care, procedural skill sets, medical knowledge, practice-based learning and improvement, interpersonal and communication skills, professionalism, and systems-based practice. CONCLUSIONS: The milestones provide a national standard for evaluation that will be used for the assessment of all residents in Accreditation Council for Graduate Medical Education-accredited pathology training programs.


Assuntos
Acreditação/normas , Competência Clínica/normas , Educação de Pós-Graduação em Medicina/normas , Patologia/educação , Humanos , Estados Unidos
19.
Cytometry B Clin Cytom ; 52(1): 20-31, 2003 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-12599178

RESUMO

BACKGROUND: Many approaches to obtaining single cells from tissue for flow cytometric immunophenotyping are used; however, these methods result in tissue that is too disrupted for subsequent histologic examination. We introduce a new technique for cell dissociation of hematopoietic malignancies that preserves tissue for histology. This is especially important with small specimens for which this type of correlation is critical. METHODS: Fresh tissue from lymph node, gastrointestinal (GI) tract, skin, and other soft tissue biopsies, in addition to cores of inaspirable bone marrows, were briefly vortexed until the RPMI cell culture medium became cloudy. Larger specimens such as lymph nodes were sectioned before disaggregating, whereas smaller ones were vortexed in toto. Resultant flow cytometric analyses were compared with the histology and, in some cases, the immunohistochemistry (IHC) to determine whether the data were concordant. Cell suspensions of 104 specimens-composed of 48 lymph nodes, 19 bone marrow cores (BMCs), 11 GI biopsies, 11 skin/soft tissue biopsies, and 15 miscellaneous specimens-were prepared via vortex disaggregation. RESULTS: Flow cytometric analysis of 96 specimens (92.3%) showed adequacy of material and diagnostic correlation with the histology and IHC. Of the eight cases (7.7%) that were discordant, seven were attributable to significant specimen fibrosis or necrosis. With respect to tissue type, this method produced diagnostic cell suspensions for most lymph nodes (95.8%), GI biopsies (90.9%), and BMCs (89.5%); however, it was less useful for skin/soft tissue samples (81.8%). CONCLUSIONS: Disaggregation of tissue for flow cytometric analysis by vortexing appears to provide adequate and representative cellular material. This technique is ideal for inaspirable bone marrows and small biopsies where tissue preservation for histology is paramount.


Assuntos
Separação Celular/métodos , Citometria de Fluxo , Leucemia/patologia , Linfoma/patologia , Biópsia , Células da Medula Óssea/patologia , Humanos , Imunofenotipagem , Linfonodos/patologia , Tonsila Palatina/patologia , Estudos Retrospectivos , Pele/patologia , Estômago/patologia
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