Female, 59 years old, with history of atypical meningioma the right parietal area status post subtotal resection and radiotherapy. Findings related to right vertex craniotomy for right parietal region tumor resection are seen. An extradural fluid collection beneath the craniotomy persists measuring up to 12 mm thickness appearing similar to the prior examination allowing for resorption of previously seen surgical material.A small resection cavity within the right parietal lobe has become smaller and is filled with nonspecific ill-defined soft tissue, likely granulation. Thin enhancement along the margins of the resection cavity continues to diminish. Thickening and enhancement along the superior sagittal sinus as it traverses the operative region is again seen compatible with residual tumor. This tissue appears to be slightly less thick than on the prior examination measuring up to 18 mm thickness in the axial plane (previously 20 mm), and 11 mm thickness in the sagittal plane (previously 13 mm).No new or worrisome intracranial lesions are seen. No significant parenchymal edema is observed. The ventricular system is normal in size and morphology.
1.Findings compatible with near complete resection of a large right parietal region meningioma. The surgical cavity has decreased in size. 2.Presumed residual tumor along the superior sagittal sinus appears to have decreased in thickness which may represent a response to treatment. No new or progressing intracranial lesions are seen.