Fig 1.

The first description and illustration of the complete form of a pli de passage fronto-pariétal moyen was provided by Wagner in 1862 (3) (right hemisphere, left image). A superior view on the 3D surface reconstruction of the SPGR in our subject is shown on the right. Note the connecting gyrus (arrow) between the pre- and postcentral gyrus at the level of the middle genu of the central sulcus, as opposed to the common configuration of the central region in the opposite hemisphere (asterisk [*]). MR image is skipped for better comparison.