maxillary arteriovenous malformation
Maxillary arteriovenous malformation is a rare vascular anomaly characterized by an abnormal connection of the arterial and venous vasculature, without capillary connections, in the maxillofacial area, usually presenting with chronic, intermittent, and potentially life-threatening, hemorrhage. Association with infection, pain, pressure, pulsation, swelling, facial asymmetry, headache, ocular pain, tinnitus, otalgia, epistaxis, toothache and/or teeth mobility and compressibility into their sockets is possible, although it may also be asymptomatic.