Female, 42 years old, with history of a left cerebellopontine angle meningioma status post resection, surveillance imaging. Findings are again seen compatible with left retrosigmoid craniotomy for resection of a left CP angle meningioma. Enhancing tissue within the left pontine cistern is unchanged measuring up to 7 mm in overall thickness. As before, this tissue exerts mild mass effect upon the left aspect of the pons but there is no evidence of pontine edema. Also similar to prior, there appears to be an enhancing dural tail which extends from this tissue into the left internal auditory canal.No new or concerning lesions are seen. A vague focus of enhancement within the midline pons is unchanged and favored to represent a capillary telangiectasia. Brain parenchymal morphology is otherwise unremarkable. No new areas of signal abnormally are seen. No evidence of acute intracranial hemorrhage or any abnormal extra-axial fluid collection is seen. The ventricles are normal in size and morphology.
1.Redemonstration of postoperative findings related to prior left CP angle meningioma resection.2.Enhancing tissue within the left prepontine cistern, favored to represent residual meningioma, is unchanged.3.No new or concerning intracranial lesions are seen.