This issue of the Neurosurgery Clinics of North America, Guest Edited by Drs. Manish Aghi and Lewis Blevins, is devoted to Management of Pituitary Tumors. Experts in the field have assembled to provide articles on Imaging of the pituitary and parasellar region; Management of Incidentally Found Nonfunctional Pituitary Tumors; Endoscopic Surgery for Pituitary Tumors; Prolactinomas - Medical versus Surgical Management; Neurosurgery for Cushing's Disease; Postoperative radiotherapy and stereotactic radiosurgery for pituitary tumors; Management options for persistent postoperative acromegaly; Medical management of persistent and recurrent Cushing's disease; Management of Large Aggressive Nonfunctional Pituitary Tumors - Experimental Medical Options when Surgery and Radiation Fail; Pituitary Carcinoma; Visual Outcomes after Surgery For Nonfunctional Adenomas Causing Visual Compromise; and Hypopituitarism and Central Diabetes Insipidus: Peri-Operative Diagnosis and Management.