title: Third ventricular meningiomas.
abstract: We report 13 patients with third ventricular meningiomas (TVM) and discuss the clinical, radiological, pathological and surgical features, as well as follow-up of these tumors. TVM are rare intracranial tumors, and because of this, there are few reports in the literature. Of 11,600 intracranial meningiomas that were surgically treated and pathologically confirmed at Beijing Tian Tan Hospital over a period of 10 years (2003-2013), 13 TVM were selected for a retrospective review. We recorded the clinical, radiological, pathological, and surgical data and statistically analyzed the preoperative, postoperative and 6 month postoperative Karnofsky performance scale (KPS) scores. TVM represented 0.11% of intracranial meningiomas. Radiologically, TVM were divided into three groups: anterior (n=3), posterior (n=3), and entire third ventricle (n=7). Three patients (23.1%) were misdiagnosed preoperatively. Total removal was achieved in 61.5% (8/13) of patients, and subtotal resection was achieved in 38.5% (5/13). Pathologically, the tumors were World Health Organization (WHO) Grade I in 11 patients (84.6%) and WHO Grade II in two (15.6%). There were no statistically significant differences in the preoperative, postoperative, or 6 month postoperative KPS scores (F=0.814; p=0.401). TVM without dural attachments are rare neoplasms that should be differentiated from choroid plexus papilloma, craniopharyngioma, and pineocytoma. Surgery is the optimal treatment and may result in a favorable prognosis, and understanding of the radiological subtype can help with the choice of surgical approach.
authors.affiliation: Department of Neurosurgery, Laiwu Hospital, Taishan Medical University, Laiwu 271100, China; Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, China.
authors.forename: Puxian
authors.initials: P
authors.lastname: Li
authors.affiliation: Department of Neurosurgery, Laiwu Hospital, Taishan Medical University, Laiwu 271100, China.
authors.forename: Xingtao
authors.initials: X
authors.lastname: Diao
authors.affiliation: Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, China.
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Bi
authors.affiliation: Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, China.
authors.forename: Shuyu
authors.initials: S
authors.lastname: Hao
authors.affiliation: Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, China.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Ren
authors.affiliation: Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, China. Electronic address: zjt_ttsw@163.com.
authors.forename: Junting
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Medical, Laiwu Hospital, Taishan Medical University, Laiwu 271100, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Xing
mesh_terms: D000328:Adult; D000068476:Beijing; D002551:Cerebral Ventricle Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D005260:Female; D006801:Humans; D017567:Karnofsky Performance Status; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D008579:Meningioma / Q000175:diagnosis* / Q000601:surgery*; D008875:Middle Aged; D011379:Prognosis; D011859:Radiography; D012189:Retrospective Studies; D020542:Third Ventricle / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D016896:Treatment Outcome
keywords: Clinical features; Microsurgery; Pathology; Radiology; Third ventricular meningioma; Ventricular meningioma