Glioma is a type of brain tumor that originates in the glial cells, which provide support and protection to the neurons in the brain. It is one of the most common types of brain tumors, accounting for approximately 30% of all brain and central nervous system tumors. Gliomas can occur at any age, but they are more commonly diagnosed in adults between the ages of 45 and 65.
The prevalence of glioma varies depending on several factors, including geographic location, age, and genetic predisposition. In the United States, the estimated annual incidence rate of glioma is around 6 cases per 100,000 people. However, it is important to note that gliomas can be highly aggressive and have a poor prognosis.
There are different types of gliomas, including astrocytomas, oligodendrogliomas, and ependymomas, each with varying prevalence rates. Astrocytomas are the most common type, accounting for approximately 75% of all gliomas.
Early detection and treatment are crucial for improving outcomes in glioma patients. Common treatment options include surgery, radiation therapy, and chemotherapy, often used in combination to target the tumor and prevent its recurrence.