Benign neoplasm of cerebral meninges [225.2], Reason for Study: ^Reason: meningioma size History: seizures There is evidence of left frontoparietal craniotomy.Previously recognized left frontal extra dural mass (meningioma) extending toward the superior sagittal sinus is again seen. Measured size of the mass does not show any significant interval change since prior scan. However, surrounding parenchymal edema appear to be increased since prior scan which is likely due to postoperative changes.There is no evidence of acute ischemic lesion.Multiple bihemispheric signal voids on gradient echo images indicating petechial hemorrhage are seen, no change in number and size since prior scan.The ventricles, sulci and cisterns are symmetric and unremarkable. There is no midline shift, intra or extra-axial fluid collection/hemorrhage, or restricted diffusion/acute ischemia. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
1. No change of left frontal lobe extra axial mass likely meningioma in terms of size and signal characteristics since prior scan.2. Status left frontoparietal craniotomy with interval increase of peritumoral brain edema.3. No evidence of acute ischemic or hemorrhagic lesion on the scan.