Transient alteration of awareness [R40.4], Reason for Study: ^Reason: eval tumor s/p craniotomy pod 1 History: eval tumor s/p craniotomy pod 1 Right frontal craniotomy with right frontal meningioma post operative status.The resection cavity demonstrates mixed signal intensities indicating operation related blood products. On Gad enhanced scan, there is subtle enhancements especially on the inferior and mesial aspect of the original mass but do not show discrete enhancement. This finding is non specific since the scan was performed in early postoperative period, thus recommend follow up imaging to evaluate possible residual mass lesion. Reactive enhancements are seen on the right frontal lobe gyri which are not unusual postoperative finding.There are right superior frontal gyral ICH and parafalcine SDH which are likely related to surgical procedure.Right frontal lobe peritumoral edema and the degree of midline shift toward left side do not show any significant interval change since prior scan.Subgaleal low signal intensities overlying craniotomy site indicate operation related air density, no change since postoperative CT scan.No acute ischemic lesion on this scan.Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
1. Post operative status of the right frontal meningioma as with blood products in tumor beds as described above.2. No significant interval change of right frontal peritumoral edema and the degree of midline shift toward left side since prior scan.3. Right superior frontal gyrus ICH and parafalcine SDH (left side) as described above. 