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. 2016 May 27;130(2):331–340. doi: 10.1007/s11060-016-2126-9

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 2 — a–f Cadaveric dissection demonstrating the steps of interhemispheric transcallosal approach. a A C-shaped incision for the interhemispheric approach. b After craniotomy, the superior sagittal sinus (SSS) is seen at the midline. c After elevation of the dura, vasculature of the region, including cortical veins draining into the SSS, is seen more clearly. d The corpus callosum (CC), cingulate gyrus (CG), and the pericallosal arteries are seen in the interhemispheric fissure. e Dissection demonstrating the anatomical relationships of the LVs. Corpus callosum (CC), column of fornix (cf), foramen of Monro (FM), thalamus (T), genu of CC (G), body of fornix (bf), choroid plexus (chp). f Superior view of the LV over the FM (arrow) demonstrating the close relationship of the third ventricle with the optic nerve and the lamina terminalis. Optic nerve (II), septum pellucidum (sp), choroid plexus (chp), thalamus (T), thalamostriate vein (tsv), lamina terminalis (LT), column of the fornix (CF)