PSYB65H3 Chapter Notes - Chapter 14: Brain Ischemia, Meningioma, Cerebrovascular Disease
Document Summary
Brain is one of the most common places for tumors, 2nd to the uterus. Benign tumors are not likely to recur, malignant ones are more likely to recur. 4 major types of brain tumors: those that originate from glial cells, meninges, nervous tissue, or other parts already infected. Most common type of tumors that form in brain are gliomas. Two main types of gliomas: astrocytomas are tumors that arise from the growth of astrocytes, tend to not grow very quickly, rarely malignant. Slow growing benign tumor but can be dangerous if they start growing in inaccessible areas. Chemotherapy is used when surgery isn"t practical: glioblastoma grow quickly and are highly malignant. Tend to infiltrate the surrounding tissues, making them very difficult to excise surgically without the removal of the relatively healthy surrounding neural tissue. Chemotherapy is often used to treat gliobastomas.
