transsphenoidal surgery(TRANS-sfee-NOY-dul SER-juh-ree)
A type of surgery in which instruments are inserted into part of the brain by going through the nose and the sphenoid bone (a butterfly-shaped bone at the base of the skull). Transsphenoidal surgery is used to remove tumors of the pituitary gland.
Transsphenoidal surgery. An endoscope and a curette are inserted through the nose and sphenoid sinus to remove cancer from the pituitary gland.2007-10-04