Myelodysplastic syndromes: clinical laboratory aspects and prognostic classification
Keywords:
myelodysplatic syndromes, prognosis, hematologic diseases.Abstract
ABSTRACTMyelodysplastic syndromes (MDS) comprise a spectrum of clonal myeloid diseases (neoplastic) that are characterized by ineffective hematopoiesis (dysplastic), cytopenias and an evolution trend for acute leukemias. Due to the variability of clinical presentations, patients with MDS were initially grouped based on morphological features - the group classification French-American-British (FAB). This classification has been recently improved by the World Health Organization (WHO) that incorporated immunophenotyping and cytogenetic data of the clinical and morphological parameters used in the FAB classification. The International Prognostic Index (IPSS) complemented this classification taking into account the percentage of marrow blasts, cytogenetic risk group and number of cytopenias to define distinct groups in terms of prognosis.
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