Abstract
Understanding the anatomy of temporal lobe sulci and their variations can allow for safer neurosurgical approaches. Although the inferior temporal sulci and their relations to each other has been described by several authors, the nomenclature used has not been universal. The aim of this study was to investigate the anatomic features of the three main sulci of the inferior temporal lobe and provide a simple description of complex patterns among these sulci. Sulcal variations and their relations were examined in seventy formalin-fixed, adult cadaveric cerebral hemispheres. We recommend a simple but modified classification specifically for anatomic variations of the rhinal and collateral sulci. Furthermore, we describe the frequency of occipitotemporal sulci that contain 5 and 6 segments, not previously mentioned. The length and depth of all sulci were measured in all samples. Additionally, more detailed results regarding the patterns, courses, connections, relationships and measurements were given. Understanding of the complex anatomy of this clinically important region is of benefit to neurosurgeons, providing necessary guidance for neurosurgical approaches to the inferior surface of the temporal lobe. Clin. Anat. 29:932-942, 2016. © 2016 Wiley Periodicals, Inc.
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