title: [Intrasellar neurinoma. Apropos of a case and review of the literature].
abstract: This 67 year-old man experienced the sudden onset of generalized headache followed by visual troubles. Examination showed a poor visual acuity of the right eye with a palsy of the right third nerve and signs of panhypopituitarism confirmed by endocrinologic testing. CT- scan and MRI showed a large sellar tumor with a necrotic portion in the middle, so that the pre-operative diagnosis was: pituitary adenoma. The tumor was removed through a trans-sphenoïdal approach. The pathologic diagnosis was benign schwannoma. A review of the literature showed that this was the second reported case of an intra sellar schwannoma mimicking a pituitary adenoma clinically as well as radiologically. Surgical removal of these lesions by a trans-sphenoïdal approach seems to be more difficult than for an adenoma. The histopathogenic origin of such tumors could be either ectopic schwann cells of peri-vascular schwann cells in the sellar region.
authors.affiliation: Service de Neurochirurgie du Pr F. Lapierre, CHU de Poitiers.
authors.forename: M
authors.initials: M
authors.lastname: Guenot
authors.forename: B
authors.initials: B
authors.lastname: Bataille
authors.forename: M
authors.initials: M
authors.lastname: Wager
mesh_terms: D000368:Aged; D003952:Diagnostic Imaging; D006801:Humans; D007018:Hypopituitarism / Q000209:etiology; D008297:Male; D009442:Neurilemmoma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D012658:Sella Turcica; D012888:Skull Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D014786:Vision Disorders / Q000209:etiology
vernacular_title: Neurinomes intra-sellaires. A propos d'un cas et revue de la littérature.