Ganglioneurocytoma status post resection and radiation, completed in 3/2011. There are stable post-surgical findings related to left frontal craniotomy and partial resection of the left frontal lobe. There is no significant interval change in the degree of confluent T2 hyperintensity surrounding the resection cavity. There is no abnormal enhancement, mass, or mass effect in the region of the surgical cavity, or elsewhere in the brain parenchyma. There is unchanged susceptibility effect along the periphery of the surgical cavity. The ventricles are unchanged in size and configuration, including ex vacuo dilatation of the left frontal horn, which is continuous with the surgical cavity. There is no evidence of hydrocephalus. There is an unchanged focus of nonspecific susceptibility effect in the right frontal lobe. There is no evidence of acute infract. The major cerebral flow voids are intact. The extracranial structures are unchanged.
Unchanged signal abnormality surrounding the left frontal lobe resection cavity.