Association of pleomorphic xanthoastrocytoma with cortical dysplasia and neuronal tumors: A report of three cases

BACKGROUND: Several recent publications indicate that pleomorphic xanthoastrocytoma (PXA) may occasionally express ganglionic cell differentiation, linking this type of tumor to other benign, mixed glioneuronal neoplasms. Furthermore, ganglionic tumors and less frequently some benign glial tumors in the central nervous system, could be associated with a variety of mild developmental abnormalities of the cerebral cortex that are classified under …