The pituitary, often called the master gland, is a peanut-shaped gland lodged at the base of the brain behind and between the eyes. The pituitary secretes a number of hormones that govern such diverse and vital functions as growth, sexual development, urine output, and many other aspects of life. It keeps an eye on other important glands such as the thyroid, adrenals and gonads to make sure they are producing the correct amount of hormones. When the pituitary senses that the other glands need regulating, it secretes various hormones which trigger a response by the other glands.

The symptoms of pituitary tumors vary depending on the size and configuration of the tumor and whether or not the particular tumor secretes hormones. The majority of pituitary adenomas are non-malignant and grow slowly within the pituitary gland. However, more aggressive and invasive tumors grow rapidly and can cause blindness, increased intracranial pressure and life-threatening endocrine abnormalities.

One in every four persons may develop a pituitary tumor during their lifetime. Of these, only a relative few will be tested and properly diagnosed. And, unfortunately, of those diagnosed, less than half are likely to receive appropriate and ongoing medical care and treatment. The lag time between onset and diagnosis of some of these illnesses is 10-14 years.

Pituitary Network Association:
http://www.pituitary.com/