The etiology of glioma

Written by Chen Yu Fei
Neurosurgery
Updated on September 21, 2024
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At present, there is no definitive conclusion regarding the specific causes of glioma. Clinically, it is generally considered the result of a combination of congenital genetic factors and acquired environmental factors. Usually, it is believed that there is a significant familial aggregation tendency in the family medical history of patients with gliomas, with a higher incidence of gliomas among family members. Additionally, acquired factors, such as severe cranial trauma followed by extensive proliferation of neuroglial cells, may induce incidents. Furthermore, severe intracranial infections, including unhealthy lifestyles, poor living environments, and the influence of radioactive materials, could potentially lead to the occurrence of gliomas.

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Written by Chen Yu Fei
Neurosurgery
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Early symptoms of glioma

For patients with glioma, in the early stages of the disease, symptoms often manifest as mild headaches, dizziness, nausea, and vomiting. The symptoms are usually mild and tolerable for patients, and most patients do not pay enough attention, which can easily lead to missed and misdiagnosis. However, as the tumor volume increases, the patient's symptoms of headache, dizziness, and other discomforts gradually worsen, and may even show episodic outbreaks and a persistent worsening state. In addition to headaches and dizziness, some patients also exhibit significant motor dysfunction, exhibiting symptoms such as hemiplegia and aphasia. Patients with severe conditions may even experience widespread intracranial pressure increase, and life-threatening conditions due to the induction of brain herniation.

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Written by Chen Yu Fei
Neurosurgery
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Is glioma a terminal illness?

Glioblastoma is not an incurable disease. Patients with glioblastoma have a type of malignant tumor that tends to grow rapidly. These tumors often adhere to surrounding brain tissue in the early stages, making complete surgical removal difficult. If any glioma cells remain after surgery, the tumor tissue will gradually grow over time. Thus, patients with glioblastoma are prone to recurrence, but it is not an incurable disease. If early detection and surgical removal can be achieved, and supplemented by radiotherapy and chemotherapy, it can maximize the therapeutic effects of the surgery, thereby effectively improving the prognosis and delaying the progression of the disease. This approach can relatively extend the patient's lifespan, and some patients may even achieve long-term survival.

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Written by Chen Yu Fei
Neurosurgery
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Causes of Glioma

Currently, there is no consensus on the specific causes of brain gliomas. Most scholars believe they result from a combination of congenital genetic factors and acquired factors. In the case of congenital factors, by tracing the medical history of patients with gliomas, it can be found that there is a tendency for a higher concentration of glioma cases among family members. Acquired factors are mostly seen in severe cranial trauma, extensive gliocyte proliferation, or due to unhealthy lifestyle habits, exposure to carcinogenic chemicals, or long-term damage from highly polluted radiation, which may easily trigger the development of gliomas.

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Written by Gao Yi Shen
Neurosurgery
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Glioma causes

In clinical practice, the etiology of gliomas is not very clear. It is not as straightforward as how smoking can easily lead to lung cancer or how cirrhosis can easily lead to liver cancer; many factors are speculative. For example, the most common theory in clinical practice involves genetics. Any form of genetic mutation or chromosomal mutation can induce the development of a glioma. For instance, excessive radiation exposure and drug abuse, and even maternal-fetal transmission or a genetic predisposition, could cause chromosomal abnormalities in patients, potentially leading to the formation of gliomas. However, the most fundamental cause has not yet been clearly identified.

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Written by Guo Zhi Fei
Neurosurgery
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Glioma is a type of disease

Glioma is a very common malignant tumor in the brain, with malignancy levels divided into grades I, II, III, and IV. Grade I has the lowest malignancy, close to benign, and patients have a good prognosis after complete surgical removal. Grade IV gliomas have the highest malignancy and are also known as glioblastomas. These tumors do not have clear boundaries, making complete surgical removal impossible, and they are highly prone to recur after surgery, leading to poor prognosis. Even with the most advanced treatments, such as surgery combined with radiotherapy, chemotherapy, and gene therapy, the average survival time is only 12-14 months, and without treatment, the average survival time is only four months.