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Start free with EleplanSystemic mastocytosis
ORPHA:2467Clinical group
What it is
A heterogeneous group of rare, acquired and chronic hematological malignancies related to an abnormal accumulation/proliferation of neoplastic mast cells (MCs) in one or several organs, mainly the bone marrow (BM), associated frequently with skin involvement.
Key facts
- Prevalence
- 1-5 / 10 000
- Age of onset
- All ages
- Inheritance
- Not applicable
- Classified as
- Clinical group
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 reported in subtypes
Orphanet records these genes on 4 more specific entries under this disorder, not on this entry itself:
A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
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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