Female, 58 years old, postoperative imaging following effect or a groove meningioma resection. There are expected postoperative changes status post bilateral bifrontal craniotomy and resection of a large olfactory groove meningioma. A small amount of postoperative blood products are present in the anterior cranial fossa, more so on the left. Small extra-axial fluid collections and postoperative enhancement of the dura are present. There may be a small amount of residual enhancing tumor along the posterior planum sphenoidale, just anterior to the sella (see image 87 series 12), though this area is difficult to assess with accuracy given postoperative blood.There is improved mass effect on both frontal lobes from removal of the mass. Extensive edema in the bilateral frontal lobes, more so on the left does not appear to be significantly changed. No new enhancing intracranial mass is identified. There is no hydrocephalus. The major intracranial flow-voids are preserved. The visualized portions of the paranasal sinuses and mastoid air cells are clear abnormal fluid signal.
Expected postoperative changes related to bifrontal craniotomy and large olfactory groove meningioma resection. Complete or near complete resection of the tumor is seen. There may be a small amount of residual tumor along the posterior aspect of the planum sphenoidale, though this area may be better assessed on subsequent exams after acute postoperative findings have resolved.