 There are postoperative findings related to left frontal lobe surgery for resection of recurrent left frontal lobe mass. There has been interval expansion of heterogenously enhancing tumor posteriorly to the surgical cavity, with extension of tumor across the midline via the corpus callosum. The degree of surrounding T2 hyperintensity has slightly increased as well. There are nonspecific punctate foci of susceptibility effect in the right parietal region. The ventricles and the basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. There is no evidence of acute infarct.
Interval progression of the left frontal lobe glioblastoma with extension across the midline via the corpus callosum.