Are meningiomas mostly benign?

Brain tumor is a general term for benign brain tumors and malignant brain tumors.

On the contrary, malignant brain tumors (most of which grow in the brain's nerve tissue) have poor cell differentiation, rapid growth, and are difficult to cure. For example, glioblastoma, metastatic tumors and invasive tumors in the brain are mostly malignant. Some benign brain tumors, due to their deep location and many important structures around them, are already very large when discovered and cannot be completely removed by surgery, resulting in a poor prognosis. Some so-called malignant brain tumors, because they grow in less important brain tissue, can be almost completely removed, survive for a long time after surgery, and can even be cured. There are very few brain tumors that start out as benign and then gradually become malignant. Therefore, no matter what kind of brain tumor you have, you should not take it lightly and go to the hospital for treatment in time.

Benign brain tumors grow slowly, have a relatively complete capsule, do not infiltrate surrounding tissues, and are well differentiated; malignant brain tumors grow quickly, have no capsule, have unclear boundaries, grow infiltratively, and are poorly differentiated. Regardless of whether it is benign or malignant, it can squeeze and push normal brain tissue, causing an increase in intracranial pressure and threatening people's lives.