title: Traumatic arteriovenous fistula of the superficial temporal artery.
abstract: Traumatic arteriovenous fistula (AVF) of the superficial temporal artery (STA) is rare. We report a case of surgically treated, histopathologically confirmed traumatic AVF of the STA. A 24-year-old male was admitted to our hospital after a traffic accident. Computed tomography scan on admission showed an acute epidural hematoma on the right surface of frontal lobe, which was emergently treated by surgical evacuation. One month later, he was aware of pulsatile tinnitus around the left ear. Digital subtraction angiogram showed an AVF, mainly fed by the left STA. After total removal of the fistula, his tinnitus immediately disappeared. Histopathological examination demonstrated that the artery was connected to the vein through the thin-walled vessels lacking internal elastic lamina and muscularized media, suggesting that the connecting vessels were newly formed.
authors.affiliation: Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan Department of Neurosurgery, Osaka University Medical School, Suita, Osaka, Japan asai-osk@umin.ac.jp.
authors.forename: Katsunori
authors.initials: K
authors.lastname: Asai
authors.affiliation: Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan.
authors.forename: Shoichi
authors.initials: S
authors.lastname: Tani
authors.affiliation: Department of Pathology, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan.
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Imai
authors.affiliation: Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan.
authors.forename: Yohei
authors.initials: Y
authors.lastname: Mineharu
authors.affiliation: Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan.
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Sakai