title: Primary suprasellar malignant tumor with odontogenic features: case report.
abstract: OBJECTIVE
  Primary malignant odontogenic tumors in the suprasellar region have rarely been reported.
  
  
  METHODS
  A partially cystic tumor that originated from the stalk and showed rapid enlargement was observed in a 56-year-old woman.
  
  
  METHODS
  Gross total removal of the tumor was performed with sacrifice of the stalk. The tumor was a malignant epithelial type with odontogenic features, whereas findings consistent with craniopharyngioma were absent. The tumor recurred 14 months after surgery.
  
  
  CONCLUSIONS
  The present unusual tumor may represent a novel member of malignant tumors of the suprasellar region. Given the common embryological origin of craniopharyngiomas to odontogenic lesions, a possible correlation with craniopharyngioma was suggested.
authors.affiliation: Department of Neurosurgery, Hachioji Medical Center, Tokyo Medical University, Tokyo, Japan. nishioka@tokyo-med.ac.jp
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nishioka
authors.forename: Makoto
authors.initials: M
authors.lastname: Shibuya
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Izawa
authors.forename: Yukio
authors.initials: Y
authors.lastname: Ikeda
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis / Q000378:metabolism; D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D003397:Craniopharyngioma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D005260:Female; D006261:Headache / Q000209:etiology; D006801:Humans; D019394:Ki-67 Antigen / Q000032:analysis / Q000378:metabolism; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D008940:Mitotic Index; D009361:Neoplasm Invasiveness / Q000473:pathology / Q000503:physiopathology / Q000517:prevention & control; D009364:Neoplasm Recurrence, Local / Q000503:physiopathology / Q000517:prevention & control / Q000601:surgery; D019635:Neurosurgical Procedures; D009808:Odontogenic Tumors / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D010902:Pituitary Gland / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D010911:Pituitary Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D012658:Sella Turcica / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014070:Tooth / Q000166:cytology / Q000196:embryology; D016896:Treatment Outcome
chemical_list: D014408:Biomarkers, Tumor; D019394:Ki-67 Antigen