FIG 3. Commissural fibers of the corpus callosum are observed in sections obtained near the lateral ventricle.

A, Coronal section obtained through the insula (110 x 110-mm subimage). In this section, the cingulum (pink) and fibers (blue) interconnecting the frontoparietal cortices of each hemisphere with the corpus callosum can be seen. The fibers of the anterior commissure (green) radiate into the temporal lobes.

B, High resolution coronal section (55 x 55-mm subimage) obtained at the level of the anterior commissure (green).