Tapetum Corporis Callosi: Carpet of the Brain

Abstract

The tapetum is described by Johann Christian Rell (1759-1813). It is formed primarily by decussating fibers in the splenium of the corpus callosum that arch over the atrium of the lateral ventricle and course inferiorly in the lateral wall of the posterior, and somewhat into the temporal horns, of the lateral ventricle. The term of tapetum was discussed from etymological and anatomical points of view.

Differences in white matter structure and cortical thickness between patients with traumatic and idiopathic chronic neck pain: Associations with cognition and pain modulation?

“…To date, limited studies are available on WM abnormalities in the tapetum as separate region. The tapetum is the temporal component of the corpus callosum (Mori et al, ) formed by decussating fibers in the splenium that arch over the atrium of the lateral ventricle and course inferiorly in the posterior and temporal horns of this ventricle (Sarikcioglu et al, ). In contrast, more evidence exists for WM deficits in the corpus callosum (genu, rostrum, body, splenium, tapetum) in chronic musculoskeletal pain patients (Lieberman et al, ) and mild TBI patients (Xiong et al, ).…”

“…In addition, differences in WM structure were revealed between CINP and CWAD patients in the left cingulum hippocampus and the left tapetum. The tapetum of the corpus callosum is periventricular WM, which is believed to be affected by traumatic acceleration–deceleration of the brain (Sarikcioglu et al, ; Todd & Lempert, ). To date, limited studies are available on WM abnormalities in the tapetum as separate region.…”

“…Finally, commissural fibers, that is (9) the tapetum of the corpus callosum (Kim et al, ; McAllister, ) and (10) the splenium of the corpus callosum (Lieberman et al, ). Acceleration–deceleration of the brain is believed to affect the superior cerebellar peduncles, and periventricular WM (McAllister, ), for example, tapetum of the corpus callosum (Kim et al, ; Sarikcioglu et al, ; Todd & Lempert, ). For visualization purposes, masks of these ROIs are displayed on MD maps of the WM Mori atlas (Mori et al, ) in Figure .…”

“…To guide the selection of cortical regions of interest (ROIs) from the Desikan parcellation scheme (Desikan et al, ) and the selection of WM tracts/ROIs from the Mori atlas (Mori et al, ) (see Figure ) evidence was retrieved from our systematic review appraising the evidence for brain alterations in INP and WAD (De Pauw et al, ), based on previous studies in patients with chronic pain or mild TBI examining GM morphological alterations (Cagnie et al, ; Cauda et al, ; Coppieters et al, ; Govindarajan et al, ; Kregel et al, ; Wang et al, ), demonstrating WM structural alterations, and regarding studies exploring associations between cortical thickness or WM structure, and measures of cognition and pain (Baek et al, ; Borsook et al, ; Chen, Blankstein, Diamant, & Davis, ; Coppieters et al, ; DeSouza, Hodaie, & Davis, ; Erpelding, Moayedi, & Davis, ; Kim et al, ; Koenig et al, ; Kraus et al, ; Lieberman et al, ; Lin et al, ; Ly et al, ; Mori et al, ; Piche et al, ; Sarikcioglu, Ozsoy, & Unver, ; Schwedt & Chong, ; Todd & Lempert, ; Upadhyay et al, ). In addition, only regions demonstrated to be mainly involved in processing pain or cognition or the combination thereof could be selected.…”