The Extent of Tumor Invasion and Therapeutic Embolization Are Associated with Recurrent Hemorrhage in Patients with External Carotid Artery Blowout Syndrome

To explore the optimal strategies of therapeutic embolization for patients with carotid blowout syndrome in the external carotid artery (ECA), who may also present with arterial tumor invasion or necrosis extending to the internal carotid artery (ICA) or common carotid artery (CCA).