are abnormal growths that develop in the pituitary gland. The pituitary gland is very small â€“ just about the size of a pea and is located at the base of the brain, in line with the eye. This is why larger pituitary tumors cause vision problems as well as a loss of smell. Pituitary tumors can cause other health problems such as Cushing's syndrome, central diabetes insipidus
and acromegaly. Take this quiz to test your knowledge on pituitary tumors.