48 years, Male, postop tumor resection. Seizures. There are postsurgical changes related to tumor resection centered in the right middle frontal gyrus. There appears to be near total resection. There is masslike T2/FLAIR hyperintensity along the superior aspect of the resection cavity measuring approximately 34 x 22 x 12 mm suspected to represent residual tumor. There is also slightly nodular T2 hyperintensity along the posterior superior aspect of the resection cavity which may represent minimal residual tumor although postoperative changes make assessment difficult of this region. Expected postsurgical changes include blood products filling the resection cavity as well as small extra-axial collection along the right cerebral convexity. There is small amount of pneumocephalus. There is minimal leftward midline shift which was seen previously. No significant new mass effect or uncal herniation is evident. There is thin rind of restricted diffusion along the resection cavity margin, relatively greater in its medial aspect compatible with cytotoxic edema involving the right frontal corona radiata. Remainder of the brain parenchyma appears unremarkable. Ventricles are normal in size. Small pocket of air and fluid is noted in the right frontal scalp which may represent postoperative seroma or perhaps pseudomeningocele.
Postoperative changes of right frontal lobe tumor resection as described above. There is near total resection with residual tumor suspected along the superior aspect of the resection cavity and questionably also along the posterior superior aspect of the resection cavity.