title: Smear cytology in the intra-operative assessment of periodontoid pseudotumour of the craniocervical junction.
abstract: OBJECTIVE
  Periodontoid pseudotumours are lesions of presumed degenerative aetiology which typically occur in elderly patients with cervical myelopathy. The clinical and radiological differential diagnosis includes neoplastic and inflammatory lesions, and the exclusion of such lesions may be of value in the intra-operative management of the patient. This audit aimed to examine the value of intra-operative smear cytology in the management of this condition.
  
  
  METHODS
  The intra-operative smear cytological features of four cases of periodontoid pseudotumour were reviewed.
  
  
  RESULTS
  In each case the intra-operative cytological interpretation was in keeping with a non-neoplastic and non-inflammatory process.
  
  
  CONCLUSIONS
  These results suggest that intra-operative smear cytology can provide information on the value in the intra-operative management of patients with this lesion.
authors.affiliation: Department of Histopathology, Royal Free Hospital, London, UK. malcolm.galloway@royalfree.nhs.uk
authors.forename: M
authors.initials: M
authors.lastname: Galloway
authors.forename: A
authors.initials: A
authors.lastname: Amin
authors.forename: A
authors.initials: A
authors.lastname: Casey
authors.forename: A
authors.initials: A
authors.lastname: Crockard
authors.forename: T
authors.initials: T
authors.lastname: Revesz
mesh_terms: D000368:Aged; D002574:Cervical Vertebrae; D003581:Cytodiagnosis; D003937:Diagnosis, Differential; D006801:Humans; D007432:Intraoperative Period; D008875:Middle Aged; D009369:Neoplasms / Q000175:diagnosis*; D009809:Odontoid Process; D013118:Spinal Cord Diseases / Q000150:complications