Persistent Trigeminal Artery with a Cerebellar Branch and Trigeminal-Cavernous Fistula from Ruptured Aneurysm: Transarterial Coil Embolization

common internal carotid artery (ICA) -basilar artery anastomosis with an incidence between 0.1% and 0.3% (1). Anomalous cerebellar artery originating from the PTA has rarely been reported (2, 3). Rarely when an aneurysm is combined and ruptures into the cavernous sinus, spontaneous trigeminal-cavernous fistula can develop, which is usually treated by transarterial detachable balloon embolization or transvenous coil embolization (4-7). We report a rare case of PTA with an arterial branch supplying the inferior cerebellum, combined with a trigeminal-cavernous fistula, which was successfully treated solely by transarterial coil embolization. CASE REPORT