Microsurgical Anatomy of the Superficial Veins of the Cerebrum

Oka, Kazunari; Rhoton, Albert L.; Barry, Margaret; Rodriguez, Roland

doi:10.1227/00006123-198511000-00003

Cited by 236 publications

(104 citation statements)

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“…The superior transverse sulcus was observed in only 62% of the hemispheres, and was interrupted in most of them, decreasing its value as a surgical reference. Oka et al 18 described the lateral surface as a region in which there is just one marked sulcus -labeled Lateral Occipital -and divided into two gyri -inferior and superior occipital. The present paper shows that the transverse sulci of the lateral surface delineate three gyri, that can be labeled superior, middle and inferior occipital.…”

Section: Discussionmentioning

confidence: 99%

Occipital lobe morphological anatomy: anatomical and surgical aspects

Flores

2002

Arq. Neuro-Psiquiatr.

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-Background: The occipital lobe is an important region of the central nervous system and site of a wide variety of lesions. Different from others regions of the brain, whose anatomy has been already meticulously detailed, controversies about occipital lobe morphology can occasionally hinder the surgical approaches to it. Method: Twenty-six hemispheres were dissected, examining the distances of the medial structures of the posterior interhemispheric fissure region; identifying the sulci and gyri more frequently found in the lateral surface; and detailing the anatomy of the occipital horn of the lateral ventricle. Also, anatomical details of structures such as the calcarine sulcus and preoccipital notch were evaluated. Results: Twenty-four hemispheres (92%) showed sulci with evident transverse trajectories in the lateral surfarce, and it was possible to identify marked longitudinal sulci in 16 (61%). All of the specimen presented a transverse sulcus in the inferior third of the lobe -labeled in this paper as Inferior Transverse Occipital -and 69% of the cases showed a transverse sulcus in the superior third -labeled as Superior Transverse Occipital. The occipital horn was present in 53% of the cases at level of the anterior boundary of the lobe. It was a half moon shaped cavity, whose the medial wall was formed by the calcar avis and the lateral wall, roof and floor formed by fibers of the tapetum. Conclusion: The occipital lobe presents parameters that are often recognized in most of the dissected brain and can be useful for the planning and performance of surgery in this area of the brain.KEY WORDS: occipital lobe, anatomy, surgery.Anatomia morfológica do lobo occipital: aspectos anatômicos e cirúrgicos Anatomia morfológica do lobo occipital: aspectos anatômicos e cirúrgicos Anatomia morfológica do lobo occipital: aspectos anatômicos e cirúrgicos Anatomia morfológica do lobo occipital: aspectos anatômicos e cirúrgicos Anatomia morfológica do lobo occipital: aspectos anatômicos e cirúrgicos RESUMO -Introdução: O lobo occipital é uma importante região do sistema nervoso central e local de ocorrência de ampla variedade de patologias. Diferente de outras regiões do cérebro, cuja anatomia já foi meticulosamente detalhada, ainda existem controvérsias a respeito do pólo occipital que ocasionalmente podem dificultar cirurgias sobre esta região. Método: Foram dissecados 26 hemisférios cerebrais, examinando-se distâncias de algumas estruturas localizadas na região da fissura interemisférica posterior, identificando os sulcos e giros mais frequentemente encontrados na face lateral do lobo occipital, e detalhando-se a anatomia do corno occipital do ventrículo lateral. Também foram avaliados detalhes anatômicos de estruturas como o sulco calcarino e incisura pré-occipital. Resultados: Em 24 hemisférios (92%) foram identificados sulcos com trajetos transversais evidentes na face lateral do lobo, sendo que sulcos longitudinais foram observados em 16 peças (61%). Em todas foi possível identificar um sulco transversal c...

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Section: Discussionmentioning

confidence: 99%

Occipital lobe morphological anatomy: anatomical and surgical aspects

Flores

2002

Arq. Neuro-Psiquiatr.

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“…1,2,4,6,8,9) Previous studies of the sylvian veins have focused on the outflow point, using angiography, three-dimensional computed tomography (CT), or cadaver study. 3,[10][11][12][13] The gold standard for surgery in this area suggests that``the arachnoid of the sylvian fissure should be opened on the frontal side of the veins, so that they will not cross the sylvian fissure when the frontal lobe is retracted.…”

Section: Introductionmentioning

confidence: 99%

Operative Anatomy and Classification of the Sylvian Veins for the Distal Transsylvian Approach

Kazumata

Kamiyama

Ishikawa

et al. 2003

Neurol. Med. Chir.(Tokyo)

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Methods for preservation of the sylvian veins in the transsylvian approach have not been established because of the considerable variations. This study attempted to classify the sylvian veins to facilitate systematic dissection of the sylvian fissure for sylvian veins to be preserved. The operative anatomy of the sylvian vein was examined in 82 hemispheres. The type of drainage and the pattern of branching were investigated. The superficial sylvian vein (SSV) was classified into three types according to the number of stems draining into the dural sinus on the inner surface of the sphenoid bone: The SSV was absent or hypoplastic in eight cases, the SSV was single in 38 cases, and the SSV was double in 36 cases. The SSV drained into neither the sphenoparietal sinus nor the cavernous sinus in nine cases. An anastomosis between the SSV and the deep middle cerebral vein (DMCV) was observed in 42 cases. The frontobasal bridging vein (FBBV) drained into the sphenoparietal sinus in 47 cases. The type of connection was further subdivided into four types according to the connections with the DMCV and FBBV. The venous anatomy of sylvian fissure indicates that dissection (skeletonization) of the main stem of sylvian veins from the temporal lobe should be performed to preserve the tributaries from the frontal lobe.

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“…The veins draining the lateral convexity of the frontal lobe are either ascending to the superior sagittal sinus or descending to the superior sylvian vein. The ascending veins are frontopolar, anterior frontal, middle frontal, posterior frontal, precentral, and central veins [280,2 ]. The ascending veins of the medial frontal surface join the ascending convexity veins along the superior rim of the frontal lobe to form subdural bridging veins that empty into the superior sagittal sinus [ 78,280,29 , 2 , 67].…”

Section: Venous Structuresmentioning

confidence: 99%