History of glioblastoma multiforme on therapy. Evaluate disease status. There is redemonstration of a right frontal approach biopsy with minimal gliosis along the biopsy tract through the right centrum semiovale, and the presence of a biopsy marker along the right aspect of the midbrain just below the thalamus. Patchy infiltrative T2 hyperintensity involving the midbrain and to a less degree the pons is again noted and unchanged in geographic extent and signal quality. No new enhancing lesions are detected. Minimal enhancement in the pons and midbrain, versus intrinsic T1 hyperintensity, is unchanged. There is no evidence of intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation.
Sequelae of right frontal approach biopsy are again seen. Stable examination with no evidence of new or progressive disease.