Recommended reporting format for flow cytometry diagnosis of acute leukemia
Luigi Del Vecchio1, Bruno Brando, Francesco Lanza
1Division of Immunohematology and Transfusion Medicine, A. Cardarelli Hospital, Naples, Italy. ldelvec@tin.it <ldelvec@tin.it>
Insights
Flow cytometry is vital for diagnosing acute leukemia, but reporting needs standardization. This study proposes 13 clear recommendations for acute leukemia cytometry reports to improve diagnostic clarity and consistency.
Area of Science:
- Hematology
- Immunology
- Cytometry
Background:
- Flow cytometry is increasingly utilized for diagnosing hematologic malignancies.
- Current reporting formats for acute leukemia immunodiagnosis are often imprecise and vague, stemming from outdated guidelines.
Purpose of the Study:
- To establish an easy-to-understand and clear reporting format for the immunological diagnosis of acute leukemia.
- To provide standardized technical guidelines for acute leukemia cytometry reports as part of a larger series by the Italian Society of Cytometry (GIC).
Main Methods:
- Development of 13 distinct recommendations covering all essential aspects of an acute leukemia cytometry report.
- Inclusion of specific elements such as patient demographics, specimen details, analytical procedures, immunophenotype, and diagnostic conclusions.
- Presentation of a case example of acute myeloid leukemia with t(8;21) translocation to illustrate the proposed reporting format.
Main Results:
- A comprehensive checklist of 13 essential components for acute leukemia cytometry reports has been formulated.
- The proposed format ensures clarity and precision in reporting, addressing patient identification, sample details, analytical methods, and diagnostic outcomes.
- The recommendations cover crucial aspects like cell counts, sample quality, gating procedures, blast cell immunophenotype, surrounding cell descriptions, and minimal residual disease detection.
Conclusions:
- The proposed 13-point checklist offers a standardized and clear framework for reporting acute leukemia immunodiagnosis via flow cytometry.
- Adoption of these recommendations will enhance the precision and consistency of diagnostic reports, improving communication and patient care.
- This initiative by the Italian Society of Cytometry aims to elevate the quality and interpretability of flow cytometry data in hematologic oncology.
Abstract:
Although flow cytometry is increasingly used as a tool to diagnose hematologic malignancies, the reporting format of acute leukemia immunodiagnosis is still imprecise and sometimes vague, often reflecting old guidelines. Thus, the purpose of the present work was to make the reporting format for the immunological diagnosis of acute leukaemia easy and clear to understand. This work represents part of a more articulated series of technical guidelines that the Italian Society for Cytometry (GIC) is currently processing. Thirteen separate recommendations, covering all aspects of an acute leukemia cytometry report, are listed. According to our suggestions, the report must contain clear statements about: 1. demographic identification of patient; 2. identification of the hospital or division sending the sample; 3. type of specimen (bone marrow aspirate, peripheral blood, other biological fluids); 4. timing of observation (first diagnosis or follow-up); 5. diagnostic hypothesis made by the sender; 6. list of antigens and type of immunofluorescence analysis carried out; 7. absolute number of cells in the sample; 8. quality of the sample, in terms of viability; 9. general description of the gating procedure; 10. immunophenotype of blast cells; 11. description of cells surrounding blasts; 12. diagnostic conclusions; 13. definition of an antigen panel (when applicable) for the detection of minimal residual disease. As an example of a final report we present a case of acute myeloid leukaemia with t(8;21) translocation; in filling this report, we followed all the 13 points of the checklist described in the paper.
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