The correct answer to this is:
“Pituitary carcinoma”
Pituitary carcinoma is the cancer which occurs in the pituitary gland, the master gland of our body since it produces hormones that control vital organs and other glands. Pituitary carcinoma most usually arises in the anterior pituitary (adenohypophysis) and must be surgically removed by way of a transsphenoidal method, using a bivalve speculum and rongeur.