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Glioblastoma, previously known as glioblastoma multiforme (GBM), is the most aggressive and most common type of cancer that originates in the brain, and has a very poor prognosis for survival. [ 6 ] [ 7 ] [ 8 ] Initial signs and symptoms of glioblastoma are nonspecific. [ 1 ]
Glioblastoma (GBM) is the most common and aggressive malignant brain tumor, accounting for about 15% of all primary malignant brain tumors.
Typical median survival for anaplastic astrocytoma is 2–3 years. Secondary progression to glioblastoma multiforme is common. Radiation, younger age, female sex, treatment after 2000, and surgery were associated with improved survival in AA patients. [10]
Temozolomide is effective for treating Glioblastoma Multiforme (GBM) compared to radiotherapy alone. [67] A 2013 meta-analysis showed that Temozolomide prolongs survival and delays progression, but is associated with an increase in side effects such as blood complications, fatigue, and infection. [67]
Gliosarcoma is a malignant cancer, and is defined as a glioblastoma consisting of gliomatous and sarcomatous components. [3] Primary gliosarcoma (PGS) is classified as a grade IV tumor and a subtype of glioblastoma multiforme in the 2007 World Health Organization classification system (GBM). [4]
The IDH1 R132H mutation is a crucial prognostic indicator in glioma, frequently arising in the early stages of tumor development. It is predominantly found in low-grade gliomas (WHO Grades II and III) and secondary glioblastomas, which originate from the progression of lower-grade gliomas. [29]
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