A transsphenoidal hypophysectomy involves the removal of what?

A transsphenoidal hypophysectomy specifically targets the pituitary gland, which is situated within the sella turcica of the skull at the base of the brain. The procedure is commonly performed to remove tumors that have developed on the pituitary, known as pituitary adenomas.

This surgical approach is chosen because it allows for access to the pituitary gland through the nasal cavity and sphenoid sinus, minimizing the need for more invasive techniques that could involve opening the skull. The primary goal of this procedure is to alleviate symptoms caused by the tumor, which may include hormonal imbalances or pressure on surrounding structures.

In contrast, tumors associated with the adrenal gland, thyroid gland, or parathyroid gland are not addressed by this particular surgical method, as these glands are located in different anatomical regions and require different surgical approaches for removal. Thus, the correct identification of the target of a transsphenoidal hypophysectomy is crucial for understanding the indications and the technique involved in this procedure.