title: Endolymphatic sac tumour: case report and literature review.
abstract: OBJECTIVE
  To increase awareness of the presentation, diagnostic difficulties and management of endolymphatic sac tumours.
  
  
  METHODS
  A 79-year-old man with a 6-month history of unilateral hearing loss, tinnitus and vertigo, who was suspected to have an endolymphatic sac tumour on imaging, underwent successful transmastoid-translabyrinthine resection. A 53-year-old man with unilateral hearing loss and pulsatile tinnitus underwent subtotal resection of a suspected paraganglioma, which was identified histologically. Due to interval growth, gamma knife radiosurgery was performed followed by subtotal petrosectomy, at which juncture an endolymphatic sac tumour was reported.
  
  
  METHODS
  A review of the world literature was carried out using Medline, which identified less than 150 reported cases of endolymphatic sac tumour.
  
  
  CONCLUSIONS
  Endolymphatic sac tumours are rare lesions of the petrous temporal bone. Although benign, they can be locally destructive. At present, there is no consensus regarding the management and long-term follow up of these tumours. Surgical resection is usually favoured, although treatment with radiotherapy and gamma knife surgery has also been reported.
authors: Department of Otolaryngology and Head and Neck Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK. j_v1rk@hotmail.com
authors: J S
authors: JS
authors: Virk
authors: P S
authors: PS
authors: Randhawa
authors: S R
authors: SR
authors: Saeed
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D000368:Aged; D004428:Ear Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D004712:Endolymphatic Sac / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D010235:Paraganglioma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D016634:Radiosurgery; D013701:Temporal Bone / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome