Extraventricular neurocytoma with ganglionic differentiation associated with complex partial seizures

We report an unusual case of extraventricular ("cerebral") neurocytoma with ganglion cells located in the right temporal lobe in a 9-year-old girl wit h complex partial seizures and precocious puberty. CT showed a calcified ma ss with central cystic zones. MR imaging showed a markedly hyperintense pre dominately solid tumor on both T1- and T2-weighted images, without apprecia ble contrast enhancement. Cerebral neurocytomas are histologically benign a nd radical surgery is curative; they should be included in the differential diagnosis of temporal lobe tumors in children.