title: Surgical treatment of falcotentorial meningioma.
abstract: Meningiomas arising from the falcotentorial junction are rare. Among our surgical experience of 375 meningiomas, only 4 cases of so-called falcotentorial meningiomas were encountered. We present these four surgical cases. An occipital transtentorial approach was used in three cases, and a combined midline occipital and suboccipital approach in one case. Total tumour excision was impossible in two cases because of engulfing deep venous structures including the great vein of Galen. Postoperative Gamma knife radiosurgery was performed in these two cases. On the other hand, a posteriorly located tumour was relatively easy to remove, and macroscopic total removal was accomplished. In conclusion, precise microvascular anatomical knowledge is indispensable to satisfactorily excise meningiomas in the falcotentorial area without significant morbidity.
authors.affiliation: Department of Neurosurgery, Neurological Institute, Tokyo Women's Medical University, Tokyo, Japan
authors.forename: N
authors.initials: N
authors.lastname: Okami
authors.forename: T
authors.initials: T
authors.lastname: Kawamata
authors.forename: T
authors.initials: T
authors.lastname: Hori
authors.forename: K
authors.initials: K
authors.lastname: Takakura
mesh_terms: D003399:Craniotomy / Q000379:methods*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008577:Meningeal Neoplasms / Q000175:diagnosis / Q000601:surgery*; D008579:Meningioma / Q000175:diagnosis / Q000601:surgery*; D008875:Middle Aged; D011183:Postoperative Complications; D016634:Radiosurgery; D012189:Retrospective Studies; D016896:Treatment Outcome