These tumors are more likely to have rapidly dividing cells but no dead cells. These tumors are less likely to grow and spread but are more likely to come back after treatment. These tumors are slow growing and unlikely to spread. Specifically for glial tumors, the grade is determined by its features, as seen under a microscope, according to the following criteria: For most tumors, the lower the grade, the better the prognosis. Tumors with features generally linked with growing more quickly are given a higher grade. For example, doctors may consider whether the tumor cells are growing out of control or if there are a lot of dead cells. Grade describes certain features in the tumor that are linked with specific outcomes. These factors may also help determine your treatment options. Together, these factors will help your doctor understand how the tumor will likely behave. Tumor histology includes finding out the type of tumor, the grade, and additional molecular features that predict how quickly the tumor can grow. As outlined in the Diagnosis section, a sample of the tumor is removed for analysis. There are several factors that help doctors determine the appropriate brain tumor treatment plan and a patient's prognosis: To decide on the best treatment for a brain tumor, both the type and grade of the tumor must be determined. The grading system described below is always used instead because the specific features of a brain tumor determine how cancerous it is and how likely it is to grow. However, there is no recommended systemic staging system for adult brain tumors because most primary brain tumors do not usually spread beyond the central nervous system. Use the menu to see other pages.įor most other types of tumors in other parts of the body, a staging system is used to describe where a tumor is located, if or where it has spread, and whether it is affecting other parts of the body. You will also learn about the prognostic factors doctors use to help plan treatment. ON THIS PAGE: You will learn about how doctors describe a brain tumor’s growth or spread.

Thebrain 9 tags