title: Benign pituitary adenoma with multiple dural metastases: a case report.
abstract: BACKGROUND
  Pituitary adenomas are considered benign tumors and metastases are seen when the tumor shows malignant transformation.
  
  
  METHODS
  We present a case of a benign pituitary adenoma with multiple dural metastasis without malignant transformation throughout its course. At all times, the pituitary adenoma remained benign as seen by a lack of nuclear pleomorphism, nuclear atypia, vascular invasion, and absence of immunohistochemical staining for p53 protein.
  
  
  CONCLUSIONS
  This is a rare example of dural metastasis from a benign pituitary adenoma. The authors believe this is the fourth reported case of this type in the literature.
authors.affiliation: Department of Surgery, Section of Neurosurgery, The Regina General Hospital, University of Saskatchewan, Regina, Saskatchewan, Canada.
authors.forename: K
authors.initials: K
authors.lastname: Kumar
authors.forename: M
authors.initials: M
authors.lastname: Kelly
mesh_terms: D000236:Adenoma / Q000473:pathology*; D000328:Adult; D002471:Cell Transformation, Neoplastic; D004388:Dura Mater / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000556:secondary*; D010911:Pituitary Neoplasms / Q000473:pathology*