New system of meningioma classification better predicts disease prognosis

One-fifth of meningiomas that are classified as ‘benign’ utilizing standard clinical analysis eventually demonstrate malignant behavior. In a new study, researchers suggested that multiple reported bioanalytical methods identify the same three tumor subtypes, which are more strongly correlated with disease progression than the WHO’s current system. Meningiomas are tumors occurring in the meninges, the membranes that surround the brain and the spinal cord. While not technically considered brain tumors, as they involve different tissues, meningiomas are the most common kind of tumor that forms in the head, and they can affect the brain by impinging on its nerves and blood...