Pituitary adenomas refer to benign tumors that develop in the pituitary gland, which is a small, pea-sized organ located at the base of the brain. This gland plays an important role in regulating various bodily functions by producing and releasing hormones into the bloodstream. Pituitary adenomas can cause problems when they produce excessive amounts of these hormones, leading to a variety of symptoms and health issues depending on which specific hormone is affected. Treatment options for pituitary adenomas may include medication, surgery or radiation therapy, depending on the size, location and type of tumor.