1. A 56-yr-old acromegalic man was scheduled for trans-sphenoidal hypophysectomy.

2. The posterior end of the Alisphenoid also bears a ventral process, the spina angularis (sphenoidal spine)

3. 25 Objective: To study the microanatomical characteristics and surgical significance of sphenoidal segment of cistern in lateral fossa of cerebrum (Sylvian cistern).

4. Medical Definition of Alisphenoid (Entry 1 of 2) : belonging or relating to or forming the wings of the sphenoid or the pair of bones that fuse with other sphenoidal elements to form the greater wings of the sphenoid in the adult