title: Neurohypophyseal pilocytic astrocytoma invading the skull base.
abstract: We describe the clinical presentation, neuroradiological and histological findings of an unusual case of pilocytic astrocytoma of the neurohypophysis, and discuss the related surgical and prognostic issues of this neoplasm which invaded the skull base and the sphenoid sinus. Only four histologically proven cases of such a tumour have been reported in the English literature, and the pathological features and behaviour of this neoplasm still await definition.
authors.affiliation: Department of Neurosurgery, Walton Centre for Neurology and Neurosurgery, Liverpool, UK.
authors.forename: L
authors.initials: L
authors.lastname: Tacconi
authors.forename: J O
authors.initials: JO
authors.lastname: Farah
authors.forename: M L
authors.initials: ML
authors.lastname: Rossi
authors.forename: R
authors.initials: R
authors.lastname: Jeffreys
mesh_terms: D000368:Aged; D001254:Astrocytoma / Q000150:complications / Q000473:pathology* / Q000601:surgery; D003388:Cranial Fossa, Posterior / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009361:Neoplasm Invasiveness; D010911:Pituitary Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery