 There are postsurgical findings related to right frontal lobe tumor resection. There is increased posterior of the peripherally enhancing T2 hyperintense tumor in the bilateral anterior frontal lobes and corpus callosum, particularly on the right side with diffuse diffusion restriction and edema. Otherwise, relative cerebral blood volume in the region of the soft tissue is not significantly elevated. There is mild volume loss in the right temporal lobe and ex vacuo dilatation of the anterior and of the right lateral ventricle. The third ventricle remains dilated. There is no evidence of acute territorial infarction. The skull and extracranial soft tissues are unchanged.
Post-treatment findings in the frontal region with interval increased posterior extension of tumor involving the bilateral frontal lobes and corpus callosum, particularly on the right side, with associated confluent restricted diffusion and edema. This may represent tumor progression perhaps with superimposed treatment effects.