 Redemonstrated is a left frontal burr hole with gliosis along the course of prior biopsy approach. There is an intrinsically T2 and T1 hyperintense lesion in the left thalamus, which extends to the left quadrigeminal plate. The lesion measures up to 17 mm, previously 18 mm. There is also a left peritrigonal enhancing lesion with elevated perfusion measuring 5 mm, previously 6 mm. There is interval increase in the nonenhancing T2 signal abnormality in the left corona radiata. There is no intracranial hemorrhage or acute infarct. There is a small focus of susceptibility effect in the right cerebellar hemisphere, consistent with hemosiderin deposition. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The skull and extracranial soft tissues are unremarkable.
1. Slight interval decrease in size of the nonenhancing left thalamic and left peritrigonal enhancing lesions.2. Slight interval increase in size of the non-specific non-enhancing high T2 signal lesion in the left corona radiata.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.