Synonyms: Unclassified mixed myelodysplastic/myeloproliferatic syndrome
A rare myelodysplastic/myeloproliferative neoplasm characterized by clinical laboratory and morphological features of both myelodysplastic syndrome and myeloproliferative neoplasm at onset in the absence of recent cytotoxic or growth factor therapy and without Philadelphia chromosome BCR-ABL1 or PCM1-JAK2 fusion or rearrangement of PDGFRA PDGFRB or FGFR1. Cases of a previously well-defined myeloproliferative neoplasm developing dysplastic features are excluded and the criteria for any other myelodysplastic/myeloproliferative neoplasm myelodysplastic syndrome or myeloproliferative neoplasm are not met.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2026
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Unclassified myelodysplastic/myeloproliferative disease?
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