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ORIGINAL RESEARCH article

Front. Neuroanat.
Volume 18 - 2024 | doi: 10.3389/fnana.2024.1458989
This article is part of the Research Topic Microsurgical Anatomy of the Central Nervous System and Skull Base Volume II View all articles

Topographic Anatomy of the Lateral Surface of the Parietal Lobe and Its Relationship with White Matter Tracts

Provisionally accepted
Volkan Oğlin Volkan Oğlin 1,2Ömer Orhun Ömer Orhun 1,3Alfredo Quiñones-Hinojosa Alfredo Quiñones-Hinojosa 4Erik H. Middlebrooks Erik H. Middlebrooks 5Orhun M. Cevik Orhun M. Cevik 1,6Murat İ. Usseli Murat İ. Usseli 6Mustafa Güdük Mustafa Güdük 6M. Emin Aksoy M. Emin Aksoy 1M. Necmettin Pamir M. Necmettin Pamir 6BARAN BOZKURT BARAN BOZKURT 1,6*
  • 1 Acıbadem University School of Medicine CASE, Neuroanatomy Laboratory, Istanbul, Türkiye
  • 2 Department of Neurosurgery, School of Medicine, Marmara University, Maltepe, Istanbul, Türkiye
  • 3 School of Medicine, Acıbadem University, Istanbul, Türkiye
  • 4 Department of Neurosurgery, Mayo Clinic, Jacksonville, United States
  • 5 Department of Radiology, Mayo Clinic, Jacksonville, United States
  • 6 Department of Neurosurgery, School of Medicine, Acıbadem University, Istanbul, Türkiye

The final, formatted version of the article will be published soon.

    Aim of the study to define sulcal and gyral variations of the lateral parietal cortex and underlying white matter tracts and emphasize the importance of relationship between topographic anatomy of parietal lobe and white matter tracts underlying it in approaches to deep parietal and atrial lesions. Twenty-eight formalin-fixed cerebral hemispheres of 14 adult cadavers were used. Ten hemispheres were dissected from lateral to medial by fiber dissection technique and all stages were photographed. Our anatomic findings were supported by MRI tractography. Postcentral sulcus and intraparietal sulcus were continuous in most of the cadavers (71% in right, 64% in left side). Intermediate sulcus of Jensen was in bayonet shape in 86 and 50 percent of cadavers at right and left side, respectively. The range of perpendicular distance between the meeting point and interhemispheric fissure was 2.5 -4.9 cm in right and 2.8 -4.2 cm in left hemisphere whereas the range of distance between meeting point and the sylvian fissure was 3 -6 cm and 2.5 -5.6 in left and right hemispheres, respectively. When the meeting point was located more laterally, the probability of damaging the arcuate fasciculus and superior longitudinal fasciculus II during dissection was increased. We also found that the intraparietal sulcus and intermediate sulcus of Jensen were associated with the superior longitudinal fasciculus II, middle longitudinal fasciculus, inferior frontooccipital fasciculus, tapetum, and optic radiation. These variations and their relation to subcortical tracts should be considered in atrium and deep parietal lobe surgeries.

    Keywords: Altunizade, Yurtcan Sokagi No:1, 34662 Uskudar/İstanbul, Türkiye Altunizade, Türkiye Neuroanatomy of the parietal lobe, Parietal lobe sulcus anatomy, Parietal lobe gyrus anatomy, Subcortical anatomy of the parietal lobe

    Received: 03 Jul 2024; Accepted: 17 Sep 2024.

    Copyright: © 2024 Oğlin, Orhun, Quiñones-Hinojosa, Middlebrooks, Cevik, Usseli, Güdük, Aksoy, Pamir and BOZKURT. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: BARAN BOZKURT, Department of Neurosurgery, School of Medicine, Acıbadem University, Istanbul, Türkiye

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