Background: Morphologic and cytogenetic assessments are required to characterize diagnostic and prognostic features of myelodysplastic syndromes (MDS). We assessed whether these assessments were performed among newly diagnosed MDS patients in the Netherlands.
Methods: MDS cases were retrieved from the nationwide Netherlands Cancer Registry (N=9159; period 2001-2014) and the regional PHAROS MDS registry (N=676; period 2008-2011).
Results: The proportion of unclassified MDS decreased from 58% in 2001 to 13% in 2014. Data from the more detailed PHAROS registry revealed that the degree of bone marrow dysplasia was only reported in ∼30% of all evaluable bone marrow aspirates. Further, the International Prognostic Scoring System was undetermined in 55% of patients, primarily owing to unperformed cytogenetics in 46% of patients.
Conclusion: The classification of MDS is improving in the Netherlands. Nevertheless, particular diagnostic and prognostic procedures that are essential for the diagnosis and subsequent treatment decision-making of MDS were not fully utilized in particular patient subsets.
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