Cytoarchitecturally it is bounded by the ventral anterior cingulate area 24 and the supracallosal gyrus ( Brodmann-1909 ).
2.
The supracallosal gyrus is prolonged around the splenium of the corpus callosum as a delicate lamina, the fasciola cinerea, which is continuous below with the fascia dentata hippocampi.
3.
It is a narrow band located in the anterior cingulate gyrus adjacent to the supracallosal gyrus in the depth of the callosal sulcus, near the genu of the corpus callosum.