title: Intrasellar Clear Cell Meningioma Mimicking Invasive Pituitary Adenoma: A Case Report and Review of the Literature.
abstract: The authors report on a 55-year-old man with complaints of intermittent pulsatile headache for 6 months, vision loss of the right eye and diplopia for 2 months. A magnetic resonance image (MRI) showed a large heterogeneously enhanced intrasellar mass lesion, occupying the entire hypophyseal fossa and extending into the sphenoid sinus. The patient underwent microscopic transsphenoidal surgery for removal of the tumor. Microscopic examination with hematoxylin&eosin and immunohistochemical staining of the tumor specimen was performed and confirmed the diagnosis of clear cell meningioma (CCM). Though postoperative MRI indicated gross total resection of the tumor, rapid recurrence was detected at 4 months after surgery. Gamma knife radiotherapy was administered. To the authors' knowledge, the present case is the first case of transsphenoidal removal of CCM. We reviewed the current literature on this rare histological type of meningioma in the sellar region.
authors.affiliation: West China Hospital, Department of Neurosurgery, Chengdu, Sichuan, China.
authors.forename: Senlin
authors.initials: S
authors.lastname: Yin
authors.forename: Peizhi
authors.initials: P
authors.lastname: Zhou
authors.forename: Qiang
authors.initials: Q
authors.lastname: Li
authors.forename: Shu
authors.initials: S
authors.lastname: Jiang
mesh_terms: D000236:Adenoma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006261:Headache / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D008579:Meningioma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D008875:Middle Aged; D010911:Pituitary Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D016634:Radiosurgery; D012658:Sella Turcica / Q000473:pathology; D013101:Sphenoid Sinus / Q000601:surgery