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Start free with EleplanDedifferentiated liposarcoma
ORPHA:99970Histopathological subtype
Also called DDLS
What it is
Dedifferentiated liposarcoma (DDLS) is a high-grade subtype of liposarcoma (LS) that progresses from well-differentiated liposarcoma (WDLS), and most often occurs in the retroperitoneum. It is defined as a region of nonlipogenic sarcoma associated with WDLS. .
Key facts
- Prevalence
- 1-9 / 1 000 000 (annual incidence, Europe)
- Age of onset
- Adult
- Inheritance
- Not applicable
- Classified as
- Histopathological subtype
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
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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