Es un [[meningioma intraventricular|meningioma intraventricular]], que ocupa el 0,1 % de todos los meningiomas En una serie de 25 tumores de la región posterior del III ventrículo solo 1 correspondió a meningioma (Behari y col., 2011). Se conocen solo 2 publicaciones de meningioma cordoide del III ventrículo (Song y col., 2008; Wilson y col., 2011). Las vías de abordaje son: [[Abordaje interhemisférico transcalloso|Abordaje interhemisférico transcalloso]] Abordaje translamina terminalis interhemisférico [[Abordaje transcortical transventricular|Abordaje transcortical transventricular]]. **Bibliografía** Avman N, Dincer C: Meningiomas of the third ventricle. Acta Neurochir (Wien) 42: 217–224, 1978 Behari, Sanjay, Sushila Jaiswal, Prakash Nair, Pallav Garg, and Awadhesh K Jaiswal. 2011. “Tumors of the Posterior Third Ventricular Region in Pediatric Patients: The Indian Perspective and a Review of Literature.” Journal of Pediatric Neurosciences 6 (Suppl 1) (October): S56–71. doi:10.4103/1817-1745.85713. Castillo RG, Geise AW: Meningioma of the third ventricle.Surg Neurol 24: 525–528, 1985 Renfro M, Delashaw JB, Peters K, Rhoton E: Anterior third ventricle meningioma in an adolescent: A case report. Neurosurgery 31: 746–750, 1992 Sayette V, Rivaton F, Chapon F, Hubert P, Ganem F, Houtteville JP: Meningioma of the third ventricle. Computed tomography and magnetic resonance imaging. Neuroradiology 33: 354–356, 1991 Song, Kyung Sun, Sung-Hye Park, Byung-Kyu Cho, Kyu-Chang Wang, Ji Hoon Phi, and Seung-Ki Kim. 2008. “Third Ventricular Chordoid Meningioma in a Child.” Journal of Neurosurgery. Pediatrics 2 (4) (October): 269–272. doi:10.3171/PED.2008.2.10.269. Strenger SW, Huang YP, Sachdev VP: Malignant meningioma within the third ventricle: A case report. Neurosurgery 20: 465–468, 1987 Uygur ER, Deniz B, Zafer K: Anterior third ventricle meningiomas.Report of two cases. Neurocirugia (Astur) 19: 356–360, 2008 Wakai S, Nakamura K, Niizaki K, Nagai M, Nishizawa T, Yokoyama S, Katayama S: Meningioma of the anterior third ventricle presenting with parkinsonism. Surg Neurol 21:88–92, 1984 Wajima, Daisuke, Junichi Iida, and Noriyuki Nishi. 2011. “Third Ventricular Meningioma--case Report.” Neurologia Medico-chirurgica 51 (1): 75–78. Wilson, J L, T L Ellis, and R T Mott. 2011. “Chordoid Meningioma of the Third Ventricle: a Case Report and Review of the Literature.” Clinical Neuropathology 30 (2) (April): 70–74.