Fig 2.

A, Sagittal T2-weighted MR image shows cord swelling and central increased signal intensity into the conus, as well as enlarged pial vessels. B, Anterioposterior view of spinal angiogram (injection of intercostal artery) shows filling of an SDAVF with pial drainage (arrowheads), arising from left T6 pedicle (arrow indicates catheter tip). C, Angiogram control shows embolization cast (arrowheads) and no more evidence of the SDAVF nor the pial drainage. D, Axial CT control shows embolization cast in foraminal location, but not within the dura mater. E, Posttreatment (8 months) sagittal T2-weighted MR image (patient with clinical worsening after an initial period of improvement). Cord swelling and central increased signal intensity into the conus are remaining, as well as enlarged pial vessels. F, Anterioposterior view of control spinal angiogram shows recurrence of SDAVF arising from right T6 pedicle via retrocorporeal anastomosis (arrowheads).