Meningioma resection: surveillance. There are postoperative findings related to right frontal meningioma resection. There is mild dural thickening and enhancement in the surgical bed region, measuring up to 6 mm in thickness. There is encephalomalacia and probable gliosis in a portion of the underlying anterior right frontal lobe. There is no evidence of acute infarct. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits are grossly unremarkable. There is left maxillary and sphenoid sinus mucosal thickening.
Mild dural thickening and enhancement in the surgical bed region may represent a small amount of residual meningioma and/or treatment effects.