Pituitary adenoma
Pituitary adenoma A pituitary adenoma is a benign tumor that arises from the pituitary gland, which is located at the base of the brain. These tumors can cause a variety of symptoms due to their impact on hormone secretion or their effect on surrounding structures. 1. Cause and Etiology Genetic Mutations: Pituitary adenomas often result from genetic mutations that cause uncontrolled cell growth in the pituitary gland. These mutations are frequently associated with tumor suppressor genes and oncogenes. Sporadic vs. Inherited: Most pituitary adenomas are sporadic (not inherited), but there are familial forms. Genetic syndromes like Multiple Endocrine Neoplasia type 1 (MEN1) , Carney Complex , and McCune-Albright Syndrome can predispose individuals to develop pituitary adenomas. Hormonal Stimulation: Certain hormones, like growth hormone (GH) , prolactin , or ACTH , can sometimes drive the formation of adenomas,...