title: Pseudotumoral presentation of a cervical extracranial vertebral artery aneurysm in neurofibromatosis type 1: case report.
abstract: OBJECTIVE
  Neurofibromatosis Type 1 (NF1) is known to be associated with vascular lesions. Association with an extracranial vertebral artery aneurysm is very rare. We report the case of such an aneurysm mimicking a cervical neurofibroma in NF1.
  
  
  METHODS
  An 18-year-old woman with previously diagnosed NF1 presented with a C6 radiculopathy. There were no clinical features suggesting a vascular origin for the lesion. The computed tomographic and standard magnetic resonance imaging scans showed a C5-C6 contrast-enhancing lesion responsible for bony erosion. Subsequent, magnetic resonance angiography and digital subtraction angiography diagnosed the lesion as a C5-C6 vertebral artery aneurysm.
  
  
  METHODS
  The lesion was treated by endovascular occlusion of both the aneurysm and the parent vertebral artery with an initial immediate disappearance of the pain.
  
  
  CONCLUSIONS
  This case serves as a reminder of the importance of ruling out a vertebral artery aneurysm with angiography when managing cervical lesions in patients with NF1.
authors: Department of Neurosurgery, Bicêtre Hospital, Le Kremlin Bicêtre, France.
authors: Matthieu
authors: M
authors: Peyre
authors: Augustin
authors: A
authors: Ozanne
authors: Ranjeev
authors: R
authors: Bhangoo
authors: Vitor
authors: V
authors: Pereira
authors: Marc
authors: M
authors: Tadié
authors: Pierre
authors: P
authors: Lasjaunias
authors: Fabrice
authors: F
authors: Parker
mesh_terms: D000293:Adolescent; D002574:Cervical Vertebrae / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D009456:Neurofibromatosis 1 / Q000150:complications* / Q000175:diagnosis*; D020217:Vertebral Artery Dissection / Q000150:complications* / Q000175:diagnosis*