The most common brain tumor by age will depend on the age group in question. For example, in children, the most common type of brain tumor is medulloblastoma, a malignant tumor that occurs in the cerebellum. In teens and young adults, the most common type of brain tumor is called a glioblastoma, which is a malignant tumor that arises from the glial cells in the brain. For adults over the age of 40, the most common type of brain tumor is a meningioma, a benign tumor that occurs in the meninges surrounding the brain and spinal cord. In the elderly population, the most common type of brain tumor is a metastatic tumor, which is a cancer that has spread from another part of the body to the brain.
Regardless of the age group, all brain tumors can be serious and should be diagnosed and treated by a medical professional. Treatment can vary depending on the type of tumor, its size, and its location. Treatment options may include surgery, radiation therapy, chemotherapy, and targeted therapy. It is important to understand all the risks and benefits of any treatment plan before proceeding.