FIG 1. Three-dimensional rotation digital subtraction angiographic (DSA) image of the RM nidus (arrow 1) after surgical construction of the end-to-end anastomosis between the CCA and external jugular vein (EJV) on the left side. The left CCA distal to the fistula has been ligated. Note the main feeding ascending PA (arrow 2), RA of the meningeal branch of the right ECA (arrow 3) and left PA (arrow 4, draining vein). Also note that the anterior branch of the right internal carotid artery (ICA) originates from the RM (arrow 5).