Diagnosis: Other malformations of cerebral vesselsClinical question: brain lesion: preop planning for resection. Page 6876 for fiducialsSigns and Symptoms: headaches, dizziness The CSF spaces are appropriate for the patient's stated age with no midline shift. There is a heterogeneous mass located in the right basal ganglia and right medial temporal lobe which extends to the surface of the insular cortex along its posterior aspect. It displaces the temporal horn of the right lateral ventricle inferiorly and medially and also compresses the hippocampus. It is associated with surrounding low signal intensity ring and a popcorn-like appearance. It measures 28 x 26 mm axial dimensions and is associated with a developmental venous anomaly.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.
A heterogeneous mass centered in the right basal ganglia and medial temporal lobe extending to the insular cortex and temporal horn of the right lateral ventricle. This most likely represents a cerebral cavernous malformation.