title: [Definition of the anterolateral occipital lobe limit in anatomical specimens and image examination].
abstract: The anterolateral limit of the occipital lobe was studied in anatomical specimens and with neuroimaging. Seven human cadaver heads, 103 normal CT-scan and 104 MRJ of the brain were studied. There was a fold of the dura mater on the transverse sinus (preoccipital tentorial plica) and a bony protuberance related directly to the preoccipital notch. It was also determined the mean distance between the parieto-occipital sulcus and the lambdoid suture. In the imaging studies, especially magnetic resonance, it was possible to identify the preoccipital notch and/or a protuberance in the cranial vault related to this notch, besides the parieto-occipital sulcus and lambdoid suture, making possible, therefore, the definition of the anterolateral limit of the occipital lobe.
authors.affiliation: Laboratório de Microcirurgia, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil.
authors.forename: Sebastião
authors.initials: S
authors.lastname: Gusmão
authors.forename: Cassius
authors.initials: C
authors.lastname: Reis
authors.forename: Uedson
authors.initials: U
authors.lastname: Tazinaffo
authors.forename: Celso
authors.initials: C
authors.lastname: Mendonça
authors.forename: Roberto Leal
authors.initials: RL
authors.lastname: Silveira
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002102:Cadaver; D002648:Child; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009778:Occipital Lobe / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed