Preoperative planing for WHO II meningioma. There are postoperative findings related to prior biparietal craniotomy. There are tumors in the treatment bed, which demonstrate decreased enhancement, but have not significantly changed in size. There is persistent extensive vasogenic edema in the adjacent bilateral cerebral hemispheres. There is regional mass effect and mild midline shift to the right. There may also be enhancement in the brain parenchyma along the surgical margins, although this is incompletely characterized given the lack of precontrast images. There is obliteration of the posterior superior sagittal sinus. Skin fiducial markers are present.
Postoperative findings related to prior biparietal craniotomy for prior partial resection of meningioma. There are residual tumors in the treatment bed, which demonstrate decreased enhancement, likely due to recent embolization. Nevertheless, there is persistent extensive vasogenic edema in the adjacent bilateral cerebral hemispheres. 