Figure 5. Coronal T2-weighted image demonstrates normal sellar and parasellar anatomy and delineates the local anatomical boundaries of the pituitary fossa. The pituitary gland (P) is sited within the sella turcica, with the sphenoid sinus (SS) demonstrated inferiorly. The pituitary stalk (S) is seen extending vertically through the suprasellar space in the midline. Superior to this is the optic chiasm (C). The lateral borders of the pituitary fossa are formed by the cavernous sinuses. On this coronal image, the T2 flow voids through the cavernous segments of the ICAs occupy the cavernous sinuses.