Vascular anomalies
Multiple vascular anomalies of the head and neck may manifest as the pulsatile form of tinnitus. Thanks to the rich supply of the ear with blood vessels, and also the ear lying strategically close to a number of important blood channels, any anomaly here and there can result in tinnitus, conducted via the vibrations through the bone. The anomalies in this case, include vascular tumors, vessels aneurysms or dilations, or anatomic malpositioning of carotid vessels or the jugular bulb.