Pituitary Gland Tumor
The pituitary is an endocrine gland with two distinct parts called the anterior and posterior lobes, each releasing different sets of hormones important for regulating body functions. The Anterior lobe controls hormones used for functions such as growth, skin color, reproduction, and blood pressure. Thus, tumors found within this section of the pituitary gland can produce a range of serious disturbances. Hormones originating from the posterior pituitary can alter water reabsorption and hydration, as well as maternal actions such as uterine contractions and milk production. Even pituitary gland tumors which do not greatly disturb hormone levels, called non-functional tumors, can cause problems such as blindness if allowed to grow large enough to overcrowd nearby nerves.