Multiple sclerosis is an autoimmune disease that affects the brain and spinal cord (central nervous system). Multiple sclerosis (MS) affects women more than men. The disorder is most commonly diagnosed between ages 20 to 40, but it can be seen at any age. MS is caused by damage to the myelin sheath. This sheath is the protective covering that surrounds nerve cells.
Typically benign tumors, adenomas often press on the pituitary gland, causing loss of function of one or more hormones. Many pituitary adenomas are called âfunctioning tumorsâ because they actually make hormones and may cause an increase in hormone levels instead of a decrease.
1 A pituitary tumor is a growth of abnormal cells in the tissues of the pituitary gland. 2  The pituitary gland hormones control many other glands in the body. 3  Having certain genetic conditions increases the risk of developing a pituitary tumor. The type and size of the tumor. 2  Whether the tumor is making hormones. 3  Whether the tumor is causing problems with vision or other signs or symptoms. 4  Whether the tumor has spread into the brain around the pituitary gland or to other parts of the body.