What determines whether astrocytomas or gliomas can be treated with surgery?
Gliomas that are located in a superficial area of the brain are easier to remove than tumors which are deep in the brain. Similarly, gliomas which are located in the critical areas of the brain, such as speech and language areas, are more difficult to remove surgically than tumors in other locations. Finally, many gliomas tend to be infiltrative in nature and can interweave within normal brain tissue.