I Basic Science.- 1 The Functional Organization of the Mammalian Dorsal Thalamus: Anatomy of the Primate Ventral Lateral Complex.- 2 Diencephalic Neurology: Hypothalamic Obesity and Emaciation.- 3 Neuropathological Considerations in Management of Deep-Seated Gliomas.- 4 Neuroradiology and Neuroimaging of the Diencephalon.- II The Diencephalon and Pain.- 5 Diecephalic Surgery for the Relief of Pain.- 6 Brain Stimulation for Pain Control.- III Surgical Experience in the Diencephalon.- 7 Superior Surgical Approaches to the Diencephalon: The Diencephalic and Paradiencephalic Regions.- 8 Superior Surgical Approaches to the Diencephalon: Surgery Around the Hypothalamus.- 9 Chiasmatic-Hypothalamic Tumors in Children.- 10 The Third Ventricular Region: Some Aspects of Third Ventricular Tumor Surgery.- 11 The Third Ventricular Region: Lesions of the Third Ventricle and the Surrounding Structures.- 12 Stereotactic Surgery of the Thalamus.- 13 Ventriculoscopy in Diencephalic and Sellar Neoplasm Resection.- 14 Surgical Treatment of Diencephalic Arteriovenous Malformations.- 15 Laser Surgery of Tumors and Arteriovenous Malformations of the Diencephalon.- 16 The Relationship between Pituitary Adenomas and the Diencephalon.- 17 Surgical Management of Craniopharyngiomas: Comparison of Results by Different Operative Approaches.- Surgical Management of Craniopharyngiomas: Reoperation in the Management of Recurrent Craniopharyngioma.