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Start free with EleplanChronic myelomonocytic leukemia
ORPHA:98823Disease
Also called CMML
What it is
A rare myelodysplastic/myeloproliferative neoplasm characterized by a spectrum of clinical, hematological, and morphological features, ranging from predominantly myelodysplastic to mainly myeloproliferative in nature, with blood monocytosis (> 1G/L, constituting > 10% of circulating leukocytes). Is it often associated with blood cytopenia and/or ''proliferative features'' (increased leukocyte counts, splenomegaly), with marrow dysplasia and risk of progression to acute myeloid leukemia (AML).
Key facts
- Prevalence
- 1-9 / 1 000 000 (annual incidence)
- Age of onset
- Adult
- Inheritance
- Not applicable
- Classified as
- Disease
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Genes
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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