title: Vanishing tumour of the internal auditory meatus.
abstract: OBJECTIVE
  We report a very rare case of prostatic metastasis in the internal auditory meatus, which disappeared with treatment.
  
  
  METHODS
  An elderly man presented with a history of hearing loss, dizzy spells and, more recently, facial palsy. He also complained simultaneously of urological symptoms, which on investigation revealed advanced, metastatic prostate cancer. Radiological investigation, in the form of magnetic resonance imaging, revealed an internal auditory meatus mass which resembled an acoustic neuroma. The patient was treated with hormone injections.Tumours of the internal auditory meatus and cerebellopontine angle are mostly primary. Rarely, metastatic deposits have been described in this region, from squamous cell carcinoma, malignant melanoma, malignant parotid oncocytoma, renal carcinoma, and lung and thyroid primaries.
  
  
  CONCLUSIONS
  To our knowledge, this is a very rare report in the world literature of prostatic metastasis to the internal auditory meatus. We discuss the common presenting features, investigations and treatment options for metastatic prostatic tumours of the internal auditory meatus and cerebellopontine angle.
authors.affiliation: Radiology Department, Ayr Hospital, Scotland, UK. abhii21@yahoo.com
authors.forename: A
authors.initials: A
authors.lastname: Jain
authors.forename: M
authors.initials: M
authors.lastname: Ablett
authors.forename: P
authors.initials: P
authors.lastname: Wardrop
mesh_terms: D000368:Aged; D018931:Antineoplastic Agents, Hormonal / Q000627:therapeutic use*; D004428:Ear Neoplasms / Q000188:drug therapy / Q000556:secondary*; D006801:Humans; D007759:Labyrinth Diseases / Q000188:drug therapy / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D011471:Prostatic Neoplasms / Q000188:drug therapy / Q000473:pathology*; D016896:Treatment Outcome
chemical_list: D018931:Antineoplastic Agents, Hormonal