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What is glioma?
Glioma is the most common primary malignant tumor of the central nervous system. It originates from astrocytes, oligodendrocytes, and related glial lineages, and is characterized by infiltrative growth with ill-defined margins. Management is challenging, and prognosis varies substantially according to histopathological type and molecular grade.
Main types and classification of glioma
1.Astrocytoma
Graded I–IV by the WHO classification; grade IV glioblastoma is the most malignant.
2.Oligodendroglioma
Often accompanied by 1p/19q codeletion and has a relatively favorable prognosis.
3.IDH-mutant type
A core molecular subtype associated with better outcomes than IDH-wild-type disease.
4.IDH-wild-type
Often corresponds to glioblastoma, with aggressive behavior and poor prognosis.
5.MGMT promoter methylation
A key biomarker predictive of response to alkylating chemotherapy.
Etiology of glioma
1.Genetic factors
A minority of cases are associated with hereditary syndromes (e.g., Li–Fraumeni syndrome and neurofibromatosis).
2.Ionizing radiation
The only established etiologic factor, such as prior cranial radiotherapy.
3.Genetic alterations
Acquired driver alterations in genes such as IDH, TERT, and EGFR underlie tumorigenesis.
4.Other potential factors
Viral infection and immune-related factors have been proposed, but current evidence remains insufficient.
Prevention and health maintenance for glioma
1.Avoid ionizing radiation
Minimizing unnecessary cranial radiation exposure is the only established preventive measure.
2.Healthy lifestyle
Maintain balanced nutrition, moderate exercise, and adequate sleep to support overall health.
3.Vigilance for symptoms and timely medical evaluation
Pay attention to neurological symptoms such as headache and seizures and undergo prompt imaging evaluation.
4.Genetic counseling
Individuals with a clear family history are advised to seek professional genetic counseling and risk assessment.
5.Postoperative rehabilitation and follow-up
Adhere to standardized rehabilitation and regular imaging surveillance as recommended.
Conclusion
Jinshazhou Hospital of Guangzhou University of Chinese Medicine emphasizes that gliomas—especially high-grade tumors—pose substantial harm and are prone to recurrence. Maximal safe resection and individualized multimodal therapy represent modern principles of care. Precision surgery combined with chemoradiotherapy and emerging therapies guided by molecular subtyping is key to delaying progression and prolonging survival.
What is glioma?
Glioma is the most common primary malignant tumor of the central nervous system. It originates from astrocytes, oligodendrocytes, and related glial lineages, and is characterized by infiltrative growth with ill-defined margins. Management is challenging, and prognosis varies substantially according to histopathological type and molecular grade.
Main types and classification of glioma
1.Astrocytoma
Graded I–IV by the WHO classification; grade IV glioblastoma is the most malignant.
2.Oligodendroglioma
Often accompanied by 1p/19q codeletion and has a relatively favorable prognosis.
3.IDH-mutant type
A core molecular subtype associated with better outcomes than IDH-wild-type disease.
4.IDH-wild-type
Often corresponds to glioblastoma, with aggressive behavior and poor prognosis.
5.MGMT promoter methylation
A key biomarker predictive of response to alkylating chemotherapy.
Etiology of glioma
1.Genetic factors
A minority of cases are associated with hereditary syndromes (e.g., Li–Fraumeni syndrome and neurofibromatosis).
2.Ionizing radiation
The only established etiologic factor, such as prior cranial radiotherapy.
3.Genetic alterations
Acquired driver alterations in genes such as IDH, TERT, and EGFR underlie tumorigenesis.
4.Other potential factors
Viral infection and immune-related factors have been proposed, but current evidence remains insufficient.
Prevention and health maintenance for glioma
1.Avoid ionizing radiation
Minimizing unnecessary cranial radiation exposure is the only established preventive measure.
2.Healthy lifestyle
Maintain balanced nutrition, moderate exercise, and adequate sleep to support overall health.
3.Vigilance for symptoms and timely medical evaluation
Pay attention to neurological symptoms such as headache and seizures and undergo prompt imaging evaluation.
4.Genetic counseling
Individuals with a clear family history are advised to seek professional genetic counseling and risk assessment.
5.Postoperative rehabilitation and follow-up
Adhere to standardized rehabilitation and regular imaging surveillance as recommended.
Conclusion
Jinshazhou Hospital of Guangzhou University of Chinese Medicine emphasizes that gliomas—especially high-grade tumors—pose substantial harm and are prone to recurrence. Maximal safe resection and individualized multimodal therapy represent modern principles of care. Precision surgery combined with chemoradiotherapy and emerging therapies guided by molecular subtyping is key to delaying progression and prolonging survival.