Fig. 1.
Interpretation of the most common molecular test results in a glioma or glioneuronal tumor. Molecular data must always be interpreted in the appropriate clinical and histopathologic contexts. MGMT promoter methylation testing is recommended in all grades III–IV gliomas. PXA = pleomorphic xanthoastrocytoma; DNT = dysembryoplastic neuroepithelial tumor; amp = amplification; del = deletion; codel = codeletion.