title: Arteriovenous malformation in the parotid region presenting as pulsatile tinnitus: a case report.
abstract: BACKGROUND
  Pulsatile tinnitus is a unique symptom in the general population and often leads patients to medical attention.
  
  
  RESULTS
  We report a patient who had an arteriovenous malformation of superficial temporal artery in the parotid region causing pulsatile tinnitus and insomnia. Magnetic resonance angiography and carotid angiography were useful tools for the detection of this vascular malformation. Successful treatment of this lesion was achieved by endovascular embolization.
  
  
  CONCLUSIONS
  This case illustrates a thorough diagnostic work-up with a high index of suspicion and a proper treatment option is rewarding when dealing with such a rare disease.
authors.affiliation: Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, National Yang-Ming University, Taipei, Taiwan, Republic of China. neuronxx@gmail.com
authors.forename: Meng-Chao
authors.initials: MC
authors.lastname: Chen
authors.forename: Wen-Yuh
authors.initials: WY
authors.lastname: Chung
authors.forename: Chao-Bao
authors.initials: CB
authors.lastname: Luo
authors.forename: Hsiu-Mei
authors.initials: HM
authors.lastname: Wu
mesh_terms: D001165:Arteriovenous Malformations / Q000175:diagnosis* / Q000628:therapy; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D004621:Embolization, Therapeutic; D006801:Humans; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D035421:Parotid Region; D011859:Radiography; D007319:Sleep Initiation and Maintenance Disorders / Q000209:etiology; D013699:Temporal Arteries / Q000002:abnormalities*; D014012:Tinnitus / Q000209:etiology*