Glioma is a type of disease

Written by Guo Zhi Fei

Neurosurgery

Updated on September 11, 2024

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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.

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Written by Chen Yu Fei

Neurosurgery

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Principles of Treatment for Glioma

For patients with glioma, the primary treatment method is still to surgically remove the tumor, followed by postoperative radiotherapy, chemotherapy, and other related treatments. The main treatment principle is to detect, diagnose, and treat early. During surgery, the tumor should be removed as completely as possible, and it is advisable to receive postoperative radiotherapy and chemotherapy early to effectively consolidate the surgical treatment effects. This helps to kill tumor cells to the greatest extent, slow down the probability and timing of tumor recurrence, and extend the patient's lifespan as much as possible. Therefore, for patients with glioma, it is recommended to choose to seek surgical treatment at well-known, top-tier hospitals locally.

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Written by Gao Yi Shen

Neurosurgery

50sec

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Is a glioma benign or malignant?

Glioblastoma is the most common form of malignant tumor inside the skull, and the vast majority of glioblastomas are highly malignant. Once changes in this condition are detected, generally, the patient doesn't have much time left. If it is a relatively better glioblastoma, which means it is highly differentiated, the survival time is about 1-2 years. For some poorer glioblastomas, or those with low differentiation, their survival period is often only about six months, and they continuously spread along with nerve fibers to the surrounding areas. They might even metastasize to distant places through cerebrospinal fluid, blood, lymph, and other means. Therefore, even if surgery is used to remove a single lesion, other parts of the body may still demonstrate metastatic lesions. Hence, the treatment approach for this is comprehensive.

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Written by Chen Yu Fei

Neurosurgery

55sec

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Is glioma malignant?

Glioblastoma is a type of malignant tumor, which generally grows at a fast pace. In the early stages of the disease, the glioma often adheres to the surrounding tissues, posing significant challenges for future complete surgical removal. At the same time, extensive cerebral edema occurs around the glioma. If prolonged, this can lead to a serious increase in intracranial pressure, manifesting as repeated headaches, dizziness, nausea, and vomiting in the patient. Over time, this condition may also lead to optic nerve atrophy, resulting in decreased vision and visual field defects. Diagnosis generally benefits from cranial CT or MRI scans, but definitive diagnosis still requires surgical removal of the tumor. A small amount of tumor tissue is typically retained for pathological biopsy.

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Written by Gao Yi Shen

Neurosurgery

54sec

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Glioma Symptoms

The symptoms of glioma are numerous, and it is essential to make judgments based on the situation. The most common clinical manifestations are headaches, dizziness, nausea, and vomiting. These symptoms may persist for a relatively long period and are relatively mild, not immediately noticeable at the time. Additionally, some patients may experience a decline in cognitive function, colloquially described as becoming less intelligent. This is especially common in gliomas of the frontal lobe. If the glioma is located in the occipital lobe, it often causes visual disturbances, such as blurred vision and visual field defects. In cases of temporal lobe gliomas, frequent seizures and impaired limb mobility may occur. For cerebellar gliomas, symptoms can include a decline in cognitive function and ataxia, among others.

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Written by Jiang Fang Shuai

Neurosurgery

46sec

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Glioma Causes

Gliomas are common intracranial primary tumors, with astrocytoma being the most prevalent, followed by oligodendroglioma, medulloblastoma, glioblastoma, ependymoma, etc. The causes of gliomas are very complex and are still unclear to this day. The prevailing view is that the development of gliomas results from the combined effects of internal carcinogenic genes and external carcinogenic factors. Changes in carcinogenic genes include gene mutation deletions, proto-oncogene activation, and so on. External factors mainly include radiation from X-rays, smoking, drinking, and some toxic and harmful foods and medications, etc.