title: Sudden deafness as an initial presenting symptom of posterior inferior cerebellar artery infarction: two case reports.
abstract: OBJECTIVE
  This paper reports on two patients with posterior inferior cerebellar artery infarction whose only presenting complaint was acute unilateral hearing loss.
  
  
  METHODS
  In the two cases reported, sudden hearing loss was an initial symptom, with no other neurological signs. Infarction in the territory of the posterior inferior cerebellar artery was diagnosed using brain magnetic resolution imaging. The patients had some degree of hearing improvement 3 or 4 days after initial treatment.
  
  
  CONCLUSIONS
  In this article, new cases of posterior inferior cerebellar artery infarction presenting as sudden deafness, without prominent neurological signs, are described. Otologists should be aware that hearing loss can sometimes appear as a warning sign of impending posterior inferior cerebellar artery infarction.
authors.affiliation: Department of Otolaryngology - Head and Neck Surgery, Chonbuk National University School of Medicine,Research Institute of Clinical Medicine of Chonbuk National University - Chonbuk National University Hospital,Jeon-ju,Korea.
authors.forename: E J
authors.initials: EJ
authors.lastname: Lee
authors.affiliation: Department of Otolaryngology - Head and Neck Surgery, Chonbuk National University School of Medicine,Research Institute of Clinical Medicine of Chonbuk National University - Chonbuk National University Hospital,Jeon-ju,Korea.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Yoon
mesh_terms: D000368:Aged; D002531:Cerebellum / Q000098:blood supply* / Q000473:pathology; D003639:Hearing Loss, Sudden / Q000209:etiology*; D006801:Humans; D014854:Lateral Medullary Syndrome / Q000175:diagnosis* / Q000503:physiopathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D014717:Vertigo / Q000209:etiology