 There has been interval evolution of postoperative findings related to left frontal lobe surgery for resection of recurrent left frontal lobe mass. The cavity now contains multiple septations and susceptibility effect. There is persistent confluent T2 hyperintensity surrounding the posterolateral aspect of the resection cavity and extending into the anterolateral aspect of the left lateral ventricle and the corpus callosum. There is also linear enhancement along the margins of the resection cavity, which is more extensive than previously. However, there is no associated grossly elevated perfusion in this region. There is dural enhancement anterior to the resection cavity, which crosses the midline to the right anteromedial dura. 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 evolution of postoperative findings related recurrent glioblastoma from the left frontal lobe, in which the resection cavity contains blood products in apparently septated compartments and nonspecific enhancement surrounding the resection cavity. Otherwise, no evidence of glioblastoma progression.