malignant meningioma
英[məˈliɡnənt ˌminindʒiˈəumə]美[məˈlɪɡnənt məˌnɪndʒiˈomə]
Malignant meningioma is a rare, fast-growing tumor that forms in one of the inner layers of the meninges (thin layers of tissue that cover and protect the brain and spinal cord). Malignant meningioma often spreads to other areas of the body.