Related Experiment Videos
Myelodysplastic syndrome: a search for minimal diagnostic criteria
F Ramos1, S Fernández-Ferrero, D Suárez
1Servicios de Hematologia, Hospital de León, Spain. framoso@aehh.org
Abstract:
We have evaluated dyshemopoietic features in bone marrow (BM) samples obtained from healthy people aged over 50 without peripheral blood (PB) cytopenia patients and compared them with MDS patients. Control group displayed BM features of dyserythropoiesis and dysgranulopoiesis in up to 15 and 27% of the considered cell elements (P90) respectively, overlapping in part with MDS patients. Interobserver agreement in dyshemopoietic features was highest for BM blast cell and pathological sideroblast counts. An algorithm based on BM blast cell and pathological sideroblast counts that has been verified on 613 patients from different Spanish centers may be of help to improve reproducibility in Myelodysplastic syndrome (MDS) diagnosis.
Insights
Healthy older adults can show dyshemopoietic features in bone marrow, overlapping with myelodysplastic syndromes (MDS). This study highlights the need for improved diagnostic reproducibility in MDS.
Area of Science:
- Hematology
- Oncology
- Pathology
Background:
- Dyshemopoietic features in bone marrow (BM) are characteristic of myelodysplastic syndromes (MDS).
- Distinguishing MDS from age-related changes in healthy individuals is crucial for accurate diagnosis.
Purpose of the Study:
- To evaluate dyshemopoietic features in healthy individuals over 50 without peripheral blood cytopenia.
- To compare these findings with those in myelodysplastic syndrome (MDS) patients.
- To assess interobserver agreement for specific BM features and develop a reproducible diagnostic algorithm.
Main Methods:
- Analysis of bone marrow (BM) samples from healthy individuals aged over 50 and MDS patients.
- Evaluation of dyserythropoiesis and dysgranulopoiesis percentages.
- Assessment of interobserver agreement for BM blast cell and pathological sideroblast counts.
- Validation of a diagnostic algorithm on 613 patients.
Main Results:
- Healthy controls exhibited BM dyserythropoiesis (up to 15%) and dysgranulopoiesis (up to 27%).
- These features partially overlapped with those observed in MDS patients.
- Highest interobserver agreement was found for BM blast cell and pathological sideroblast counts.
Conclusions:
- Dyshemopoietic changes can be present in healthy older adults, necessitating careful diagnostic evaluation.
- An algorithm utilizing BM blast cell and pathological sideroblast counts shows promise for improving diagnostic reproducibility in MDS.
- Further validation is essential for clinical application of the proposed algorithm.