[Tinnitus of vascular type. Diagnostic possibilities].

It's defined tinnitus as an auditive perception of internal origin that it does not answer to vibratory external action. The rest of the sounds are considered as real biological noises and not properly as tinnitus. Tinnitus is a very common symptom in our practice. It is important to determine what causes it, since medical treatment is effective in some cases and prevents serious complications, severe bleeding and neurological consequence if any surgical treatment is carried out. We present two cases of tinnitus of vascular origen, the first caused by venous malformation and the second by an arterial one. We review the literature of this entity.