Neoplasm of unspecified behavior of brainClinical question: preop planning for tumor resection. Pt has unspecified tumorSigns and Symptoms: preoperative planning There is redemonstration of an extra-axial mass which involves the right planum sphenoidale as well as the anterior and medial aspect of the right middle cranial fossa which displaces the adjacent right frontal and temporal lobes. It measures 36 x 30 mm axial dimensions and has not changed since the prior exam. It is associated with a vasogenic pattern of edema in the right frontal lobe, right medial temporal lobe and right external capsule. It displaces the right internal carotid artery medially and the right middle cerebral artery posteriorly. It abuts the right cavernous sinus and right optic nerve. It displaces the right optic nerve medially.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 demonstrate some mucosal thickening in the maxillary sinuses.. The visualized portions of the mastoid air cells are clear. The visualized portions of the orbits are intact.
1.An extra-axial mass adjacent to the right frontal and temporal lobes most likely represents a meningioma. It displaces adjacent structures.2.Please note this is a limited exam for the purpose of stereotactic guidance