Tuberculum Sellae Meningioma
Tuberculum sellae meningiomas develop on the aforementioned region of the sphenoid bone, growing into the diaphragma sellae and compressing the pituitary gland while stretching the optic nerve. The tumor also grows into the optic canal further compressing the nerve.
In this illustration, the surgeon is debulking the tumor using a pituitary forcep.
Anatomy in this medical illustration: Optic nerve, Internal carotid artery, Posterior communicating artery, Frontal lobe, Temporal lobe, Anterior clinoid