75 years, Female, status post tumor resection. Examination is motion degraded and limited to axial diffusion, FLAIR, T2, and sagittal T1-weighted sequences. There are postoperative changes of right frontal craniotomy for resection of previously seen enhancing right frontal lobe mass which extended underneath the falx into the left frontal lobe. There is restricted diffusion along the margins of the resection cavity compatible with cytotoxic edema. There is extensive vasogenic edema in the right frontal lobe, involving the callosal genu and anterior body, and extending into left frontal lobe. Expected postsurgical changes include blood products within the resection cavity and small volume pneumocephalus. Lack of contrast limits evaluation for small lesions however no obvious residual tumor is appreciated. There is mass effect with effacement of the frontal horns and mild leftward subfalcine herniation which are similar to prior. No large hemorrhage, hydrocephalus, new mass effect or new herniation is demonstrated.
Patient could not tolerate the full study, and only noncontrast sequences could be obtained. Within this limitation, there appears to be gross total resection of the previously seen enhancing mass involving the right frontal lobe with mild extension underneath the falx into the left frontal lobe. Extensive vasogenic edema and mild leftward subfalcine herniation are similar to prior