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Start free with EleplanUnclassified myelodysplastic/myeloproliferative disease
ORPHA:98825Disease
Also called Unclassified mixed myelodysplastic/myeloproliferatic syndrome
What it is
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.
Key facts
- Classified as
- Disease
Recorded for the broader condition
- Prevalence
- 1-9 / 1 000 000 (annual incidence, Europe)Myelodysplastic/myeloproliferative disease
Orphanet records these for the broader condition rather than for this specific form. They are a starting point, not a figure for this subtype — subtypes often differ, and some are defined by being rarer than the condition they sit under.
ICD-10 codes
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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