Malignant neoplasm of frontal lobe [C71.1], Reason for Study: ^Reason: 34 yo M with recurrent GBM s/p prior surgeries and chemoRT, planning scan for re-RT planning History: none Previously seen tissue defect on the left frontal lobe appears to be slightly shr inked since prior scan.Enhancing lesions on the left frontal lobe adjacent to the excision cavity as well as caudate nucleus is again seen, grossly unchanged since prior scan.Prominent dural enhancement on the right frontal and part of the left frontal lobe reflects postoperative changes.There is no other abnormal enhancing lesion on this scan.The ventricles, sulci and cisterns are unremarkable. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
Postoperative expected changes with residual enhancing lesions along the resection margin, no gross interval changes since prior scan. 