What is a meningioma?



Meningioma is the most common type of primary brain tumor, accounting for approximately 30% of all brain tumors. Meningiomas originate in the meninges, which are the outer three layers of tissue between the skull and the brain that cover and protect the brain just under the skull. Meningiomas grow out of the middle layer of the meninges, called the arachnoid. When they grow, they press against the brain or spinal cord.

About 85% of meningiomas are benign (non-cancerous, slow growing) tumors. Meningiomas can often be removed entirely with surgery. Some meningiomas may not need immediate treatment and can often remain undetected for many years.

and it's usually benign and stops growing when the bones around it do. It's only problematic when it's near the sinuses and blocks one of them. Then the procedure is to drill through it to drain the sinus, won't make anyone's day but it's not a drastic thing.

Meningiomas are usually benign and slow growing tumors on one of the coverings that surround the brain. If they grow enough to become symptomatic, the treatment is surgical removal. Again, this doesn't disturb the brain, itself, and as neurosurgeries go, it's uncomplicated and complete recovery is swift. Meningiomas become symptomatic when they grow enough to put pressure on the underlying brain tissue. They typically don't invade the brain or any other structures. They can recur after surgery but I've never seen one recur.

remember exostosis. Thank you very much.

Shoot, even after 25 years on the job, I still have to look stuff up now and then.