Re-evaluation after stage II resection of olfactory groove meningioma on 2/25/15: 3 month follow up There are postoperative findings related to recent bifrontal craniotomy with areas of susceptibility along the margins of the resection cavity and bilateral anterior frontal lobe encephalomalacia. There is an enhancing mass in the posterior aspect of the resection cavity, adjacent to the anterior cerebral arteries, that measures up to approximately 20 mm. There also appears to be sheet-like enhancement along the left planum sphenoidale that measures up to 10 mm in thickness, adjacent to the left optic nerve. The ventricles are unchanged in size and configuration. There is no evidence of territorial infarction. There is mild scattered paranasal sinus mucosal thickening.
Postoperative findings related to olfactory groove meningioma resection with no significant interval change in size of the residual tumor in the posterior aspect of the resection cavity and perhaps along the left planum sphenoidale. 