title: Is the omega sign a reliable landmark for the neurosurgical team? An anatomical study about the central sulcus region.
abstract: The central sulcus region is an eloquent area situated between the frontal and parietal lobes. During neurosurgical procedures, it is sometimes difficult to understand the cortical anatomy of this region.Objective Find alternative ways to anatomically navigate in this region during neurosurgical procedures.Method We analyzed eighty two human hemispheres using a surgical microscope and completed a review of the literature about central sulcus region.Results In 68/82 hemispheres, the central sulcus did not reach the posterior ramus of the lateral sulcus. A knob on the second curve of the precentral gyrus was reliably identified in only 64/82 hemispheres.Conclusion The morphometric data presented in this article can be useful as supplementary method to identify the central sulcus region landmarks.
authors.affiliation: Departamento de Neurologia e Neurocirurgia, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Thiago
authors.initials: T
authors.lastname: Rodrigues
authors.affiliation: Departamento de Radiologia, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
authors.forename: Mariana
authors.initials: M
authors.lastname: Rodrigues
authors.affiliation: Departamento de Neurologia e Neurocirurgia, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Daniel
authors.initials: D
authors.lastname: Paz
authors.affiliation: Departamento de Neurologia e Neurocirurgia, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Marcos Devanir
authors.initials: MD
authors.lastname: Costa
authors.affiliation: Departamento de Neurocirurgia, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Bruno
authors.initials: B
authors.lastname: Santos
authors.affiliation: Departamento de Neurocirurgia, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Vinicius
authors.initials: V
authors.lastname: Braga
authors.affiliation: Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Manoel de
authors.initials: Md
authors.lastname: Paiva Neto
authors.affiliation: Departamento de Neurologia e Neurocirurgia, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Centeno
authors.affiliation: Departamento de Neurologia e Neurocirurgia, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Sergio
authors.initials: S
authors.lastname: Cavalheiro
authors.affiliation: Departamento de Neurocirurgia, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Feres
authors.initials: F
authors.lastname: Chaddad-Neto
mesh_terms: D059925:Anatomic Landmarks / Q000033:anatomy & histology*; D003399:Craniotomy; D005625:Frontal Lobe / Q000033:anatomy & histology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D009445:Neuroanatomy / Q000379:methods; D019635:Neurosurgical Procedures / Q000379:methods*; D010296:Parietal Lobe / Q000033:anatomy & histology*; D012015:Reference Standards