Fig 3.

Case 3. Imaging of a 42-year-old woman presenting with new-onset seizures. A, Axial contrast-enhanced T1-weighted MR image shows a conspicuous vascular structure (arrow). B, Early arterial, late arterial, and venous phases of CTA (upper row, MIP, lateral view) and CA (lower row, lateral view, internal carotid artery injection). The arrow indicates the feeding artery; the thin arrowhead, the nidus; the large arrowhead, the draining veins; and the long arrow, stenosis in the anterior draining vein.