Oligodendroglioma

A rare glial tumor characterized by a highly cellular lesion that is diffusly infiltrating at the periphery and consists of evenly-spaced monomorphic cells with the oligodendroglial phenotype. It typically occurs in the supratentorial white matter. Histologically, the cells are uniformly round to oval with round nuclei, delicate chromatin and small nucleoli. Most patients present with seizures.