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  2. Astrocytoma - Wikipedia

    en.wikipedia.org/wiki/Astrocytoma

    Due to the infiltrative nature of these tumors, recurrences are relatively common. Depending on the patient, radiation or chemotherapy after surgery is an option. Individuals with grade 2 astrocytoma have a 5-year survival rate of about 34% without treatment and about 70% with radiation therapy. [6] The median survival time is 4 years. [6] III

  3. Subependymal giant cell astrocytoma - Wikipedia

    en.wikipedia.org/wiki/Subependymal_giant_cell...

    Subependymal giant cell astrocytoma (SEGA, SGCA, or SGCT) is a low-grade astrocytic brain tumor (astrocytoma) that arises within the ventricles of the brain. [1] It is most commonly associated with tuberous sclerosis complex (TSC). Although it is a low-grade tumor, its location can potentially obstruct the ventricles and lead to hydrocephalus.

  4. Pilocytic astrocytoma - Wikipedia

    en.wikipedia.org/wiki/Pilocytic_astrocytoma

    Pilocytic astrocytoma (and its variant pilomyxoid astrocytoma) is a brain tumor that occurs most commonly in children and young adults (in the first 20 years of life). They usually arise in the cerebellum, near the brainstem, in the hypothalamic region, or the optic chiasm, but they may occur in any area where astrocytes are present, including the cerebral hemispheres and the spinal cord.

  5. Brain tumor - Wikipedia

    en.wikipedia.org/wiki/Brain_tumor

    This is an accepted version of this page This is the latest accepted revision, reviewed on 11 February 2025. Neoplasm in the brain Medical condition Brain tumor Other names Intracranial neoplasm, brain tumour, brain cancer Brain metastasis in the right cerebral hemisphere from lung cancer, shown on magnetic resonance imaging Specialty Neurosurgery, neuro-oncology Symptoms Vary depending on the ...

  6. Pleomorphic xanthoastrocytoma - Wikipedia

    en.wikipedia.org/wiki/Pleomorphic_xanthoastrocytoma

    Among people with PXA who were able to have their tumors completely resected during surgery, there is a long-term survival rate of 90%. After incomplete resection, the long-term survival rate is higher than 50%. Morbidity is determined by the type and evolution of the tumor, with high-graded anaplastic tumors causing more fatalities. [citation ...

  7. Thalamic glioma - Wikipedia

    en.wikipedia.org/wiki/Thalamic_glioma

    Two year survival rate 19.7% (adults), pediatric five year survival rate 15-25% (high grade astrocytoma) or 40% (low grade astroyctoma) Thalamic gliomas are very rare, deep-seated, generally high-grade glial neoplasms that form in the thalamus , representing 1–5% of all pediatric brain tumors. [ 1 ]

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