Here is the third on my series of educational presentations.  It deals with embryology, anatomy and congenital abnormalities of the pituitary gland.  I need to acknowledge that this one was authored by Drs. Spampinato, Camacho and Grimme during their fellowships here at UNC and was previously shown at ASNR.  Like the other two presentations, it is compressed and it is not protected so please give credit to its source if you decide to use it for teaching purposes elsewhere.

this is a 48 yo woman who had radiotherapy for left trigeminal neuralgia (look the temporal lobe). No pituitary gland problems.
It is evident the slit like appearance of the gland that appears something like squeezed by two cystic symmetrical formations.
Are them arachnoid cysts?
Is this a pattern already seen?

Thanks, Eytan