Astrocytomas
Astrocytomas
Astrocytomas (/ˌæstrəˈsaɪtəməz/; from Greek astro meaning "star" and cytoma meaning "tumor") are a type of cancer that originates in a specific kind of glial cells, known as astrocytes, which support nerve cells. They are the most common type of glioma and can occur in most parts of the brain and occasionally in the spinal cord.
Classification
Astrocytomas are classified into four grades by the World Health Organization (WHO), based on how fast they are growing and their likelihood of spreading.
- Grade I or pilocytic astrocytoma is the least aggressive type.
- Grade II or diffuse astrocytoma grows slowly but can evolve into a higher grade.
- Grade III or anaplastic astrocytoma grows faster and is more likely to spread than grade II.
- Grade IV or glioblastoma multiforme (GBM) is the most aggressive and most common form of astrocytoma.
Symptoms
The symptoms of astrocytomas can vary greatly depending on their size, location, and rate of growth. Common symptoms can include headache, nausea, vomiting, seizures, and neurological problems such as memory loss or difficulty speaking.
Treatment
Treatment for astrocytomas depends on the grade of the tumor. Options can include surgery, radiation therapy, chemotherapy, or a combination of these.
Prognosis
The prognosis for astrocytomas varies widely depending on the grade of the tumor, the patient's age, and other health factors.
See also
References
External links
- Medical encyclopedia article on Astrocytomas
- Wikipedia's article - Astrocytomas
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