title: Trigeminal nerve haemangioma eroding the petrous carotid canal.
abstract: OBJECTIVE
  To report the first case of mandibular branch haemangioma of the trigeminal nerve causing erosion of the petrous carotid canal. The radiological and histological findings in this case are reviewed.
  
  
  METHODS
  A 60-year-old woman presented with severe, right-sided facial pain and paraesthesia. There were no associated symptoms of facial weakness or diplopia. A magnetic resonance imaging scan with gadolinium enhancement was performed. This showed a lesion slightly compressing the right Meckel's cave and eroding the right petrous carotid canal, occupying the foramen ovale and extending to the pterygoid muscle. The lesion was removed via a subtemporal approach.
  
  
  CONCLUSIONS
  Haemangiomas are usually found on the skin and in other soft tissues. However, this rare tumour should also be considered in the differential diagnosis of lesions occupying Meckel's cave and the foramen ovale.
authors.affiliation: Department of Otolaryngology Head and Neck Surgery, Centre Hospitalier de l'Université de Montréal-Notre-Dame Hospital, Montreal, Quebec, Canada. issam.saliba@umontreal.ca
authors.forename: I
authors.initials: I
authors.lastname: Saliba
authors.forename: F
authors.initials: F
authors.lastname: El Fata
authors.forename: F
authors.initials: F
authors.lastname: Berthelet
authors.forename: R
authors.initials: R
authors.lastname: Moumdjian
mesh_terms: D002908:Chronic Disease; D003390:Cranial Nerve Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D005157:Facial Pain / Q000209:etiology* / Q000601:surgery; D005260:Female; D006391:Hemangioma / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010292:Paresthesia / Q000209:etiology* / Q000601:surgery; D010579:Petrous Bone / Q000601:surgery; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014276:Trigeminal Nerve / Q000601:surgery