title: [A rare case of diminished visual acuity: neurohypophyseal granular cell tumor].
abstract: A neurohypophyseal granular cell tumor was found in a 60-year-old man who presented diminished visual acuity. Neuronavigation resection via a fronto-pteronial approach removed split up material. The diagnosis was established by histology and immunochemical studies. Granulous cell tumors, which are common, are rarely located in the neurohypophysis. Their origin remains a subject of debate, but unlike the other localizations, these tumors in the sellar and/or supra-sellar area are always considered benign. The clinical course depends on the quality of the surgical resection; there is no consensus on appropriate management.
authors.affiliation: Service d'anatomie pathologique, hôpital d'instruction des armées de Percy, 101, avenue Henry-Barbusse, BP 406, 92141 Clamart cedex, France. psbpercy@yahoo.fr
authors.forename: P
authors.initials: P
authors.lastname: Saint-Blancard
authors.forename: B
authors.initials: B
authors.lastname: Pierre
authors.forename: C
authors.initials: C
authors.lastname: Philippe
authors.forename: F-R
authors.initials: FR
authors.lastname: de Soultrait
mesh_terms: D016586:Granular Cell Tumor / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures; D010900:Pituitary Diseases / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery; D010911:Pituitary Neoplasms / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery; D014786:Vision Disorders / Q000209:etiology / Q000503:physiopathology*; D014792:Visual Acuity / Q000502:physiology*