Fig. 1. Illustration of SDAVF at lower thoracic level.

Arteries are labeled with black background, while veins are labeled with white background. a = aorta, b = intercostal artery, c = dorsal branch of spinal artery, d = ventral branch of spinal artery, e = ventral epidural arcade, f = dural branch of ventral spinal artery, g = radicular artery, h = radiculomedullary artery, i = radiculopial artery, j = anterior spinal artery, k = dural branches of radiculopial artery, l = radial vein, m = perimedullary venous plexus, n = posterior radicular vein, o = anterior radicular vein, p = intervertebral vein, q = epidural venous plexus.