What are the most common brain tumors?
In adults, the most common brain tumors are derived from astrocytes (the cells that make up the “connective tissue” of the brain) and meningeal cells (the cells that make up the lining of the brain). Tumors derived from astrocytes include astrocytomas, anaplastic astrocytomas, and glioblastoma multiforme. Tumors derived from meningeal cells are called meningiomas. In children, a different group of tumors are seen, which are rarely seen in adults and derived from cells that are normally present only in the fetus, but abnormally retained after birth.
