What’s a “meningioma?” My daughter was diagnosed with this and is going to have an operation to remove it.

A meningioma is a tumor that is usually benign and slow-growing. It occurs in the layers of the meninges. The meninges are the lining or membrane enclosing the
spinal cord and brain.

You didn’t say where your daughter’s meningioma is located. Although these tumors are benign, they can put pressure on nearby tissues. That’s why they are usually removed. They are more common in women and rarely occur in children.