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ORPHA:251582Disease
What it is
A rare glial tumor characterized by extensive infiltration of the brain, often extending to infratentorial structures and even the spinal cord. The tumor corresponds to WHO grade III and is composed of elongated glial cells typically resembling astrocytes. Cases in which the predominant cell type is oligodendroglial have also been described. Some tumors develop a circumscribed neoplastic mass in addition to the diffuse lesion, usually showing features of high-grade glioma. Clinical symptoms include dementia, headache, seizures, signs of increased intracranial pressure, and a variety of neurological deficits. Prognosis is generally poor.
Key facts
- Prevalence
- <1 / 1 000 000 (annual incidence, Europe)
- 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.
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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