Reason: Hx of atypical meningioma with slowly resolving post-operative changes, surveillance MRI There is redemonstration of diffuse dural thickening and left medial frontal subdural hematoma. The left-sided subdural hematoma has decreased in width from 17 to 6 mm in thickness. There are associated subdural effusions present.There is a redemonstration of small subcortical T2/FLAIR signal hyperintesities at the left precentral and postcentral gyri as well as along the left paracentral lobule. These were present preoperatively.Normal vascular flow voids are present in the distal carotid and vertebral arteries, the basilar artery and the proximal anterior, middle and posterior cerebral arteries as well as the internal cerebral veins and superior sagittal sinus.The visualized portions of the paranasal sinuses are clear. The visualized portions of the mastoid air cells are clear. The visualized portions of the orbits are intact.
1.Since the prior examination a left frontal subdural hematoma has regressed in size but has not resolved.2.Patient status post left frontal craniotomy for removal of a meningioma. There are post operative effects redemonstrated. There is no evidence for residual or recurrent tumor on the current exam.