Reason: pre-op planning History: pre-op There is an extra-axial mass measuring 87 x 65 mm axial dimensions and 71 x 51 mm coronal dimensions anterior to the corpus callosum and between the frontal lobes associated with numerous flow voids on susceptibility imaging. Some small foci of non-enhancement along the right superior aspect of the tumor most likely a result of the recent embolizationNormal 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.Large mass adjacent to the frontal lobes bilaterally and associated with mass effect on the frontal lobes and callosum most likely represents meningioma.