DSA was performed from CCA, the characteristic splaying of the 2 main left carotid branches (lyre sign) was confirmed; the mass showed a rich blood supply from feeding vessels originating primarily from left ascending pharyngeal artery (A and B). The ECA was temporarily occluded with Eclipse micro-balloon catheter, to prevent the reflux of embolic material (C). The CBT was punctured percutaneously, under ultrasound guidance, for the intralesional injection of the embolic material Onyx (D). The final angiographic assessment showed a complete and successful elimination of the uptake of contrast agents in the mass (E). Forty-eight hours later, the surgical resection of the tumor was carried out without complications (F).