The corpus callosum is a transverse fiber connection between the two cerebral hemispheres and forms the largest part of the commissural system.
Anatomy
The corpus callosum is anatomically divided into three parts: the rostrum, genu, and splenium.
Rostrum corporis callosi
The rostrum corporis callosi is the anterior, tapering section of the corpus callosum below the genu corporis callosi. It is connected to the Commissura anteriorLamina terminalis.
Genu corporis callosi
The genu corporis callosi is the anterior part of the corpus callosum facing the two Frontal lobes, which tapers into the rostrum corporis callosi.
Splenium corporis callosi
The splenium corporis callosi describes the posterior thickened section of the corpus callosum.
Figure
Imaging
Clinical relevance
Common lesions that manifest in the corpus callosum include lymphomas, multiple sclerosis plaques, lipomas, or diffuse axonal injuries following trauma[^1].