title: Does craniopharyngioma metastasize? Case report and review of the literature.
abstract: OBJECTIVE
  A rare case of recurrent craniopharyngioma at an ectopic location is described. This recurrence suggested cerebrospinal fluid seeding.
  
  
  METHODS
  A 65-year-old man presented for follow-up of persisting visual field defect. He had undergone total resection of a suprasellar craniopharyngioma via a subfrontal approach 3 years before presentation. Recent magnetic resonance imaging scans revealed a contrast-enhancing tumor with cystic and solid components at the right temporal lobe. The primary tumor bed was intact.
  
  
  METHODS
  A temporal craniotomy was performed for total resection of the tumor. Intraoperative findings revealed that the recurrent tumor was anatomically unrelated to the previous surgical track. Histological studies of the tumor specimen demonstrated a benign craniopharyngioma. Cerebrospinal fluid spreading was suspected to be the sole route for the recurrence.
  
  
  CONCLUSIONS
  The case presented here and a review of reports on remote recurrence of craniopharyngioma suggest that care is required during intraoperative handling of the tumor and that long-term follow-up should be performed even in patients whose primary tumor was resected completely.
authors.affiliation: Department of Neurosurgery, Rinku General Medical Center, Osaka, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Ito
authors.forename: J
authors.initials: J
authors.lastname: Jamshidi
authors.forename: K
authors.initials: K
authors.lastname: Yamanaka
mesh_terms: D000368:Aged; D001932:Brain Neoplasms / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D002555:Cerebrospinal Fluid / Q000166:cytology; D003397:Craniopharyngioma / Q000175:diagnosis / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009366:Neoplasm Seeding; D010911:Pituitary Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D013702:Temporal Lobe / Q000473:pathology / Q000601:surgery*