Fig. 26.MRI of coronal sections through the hypothalamus. (A) Anterior hypothalamus corresponding to Fig. 16A showing location of the anterior commissure (arrows). (B) Mid hypothalamus corresponding to Fig. 16B showing location of the fornix (arrow). (C) Mid hypothalamus corresponding to Fig. 16C showing the optic tract. The fornix can sometimes also be visualized at this level. (D) Caudal hypothalamus corresponding to Fig. 16D at the level of the medial mammillary bodies (arrow). Sometimes the mammilothalamic tract can be visualized at this level.