Pituitary Tumor Encyclopedia: Pituitary Tumor pituitary tumor National Institutes of Health tumor in the pituitary gland Encyclopedia: Pituitary Tumor Full article >>> MedlinePlus Encyclopedia: Pituitary Tumor pituitary pituitary tumor in the pituitary gland Pituitary Tumor pituitary tumor MedlinePlus Encyclopedia: Pituitary Tumor 20 percent of people have pituitary tumors Pituitary Tumor NIH / MedlinePlus tumor in the pituitary gland Encyclopedia: Pituitary Tumor