Parietal craniotomy for repeat resection of atypical meningioma on 3/8/16. There are interval postoperative findings related to posterior parietal cranioplasty for resection of recurrent meningioma. There is nodular enhancement that measures up to 20 mm in the left posterolateral aspect of the resection cavity and persistent extensive vasogenic edema in the surrounding brain parenchyma. There is mild susceptibility effect and areas of restricted diffusion along portions of the surgical margins related to blood products, as well as regional prominent leptomeningeal enhancement. There is also sulcal prominent susceptibility effect in the right frontal and left parietal lobes, which may represent hemorrhage or cortical vein thrombosis. There is swelling and fluid in the overlying scalp. There are unchanged scattered foci of nonspecific cerebral white matter T2 hyperintensity in the anterior frontal lobes. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. There are bilateral lens implants. There are persistent secretions in the left frontal sinus.
Postoperative findings related to repeat parietal convexity meningioma resection with what appears to be residual tumor that measures up to 20 mm in the left posterolateral aspect of the resection cavity and persistent extensive vasogenic edema in the surrounding brain parenchyma.