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5. Tumors of the Hypothalamus and Neurohypophysis 151 Neuronal Tumors 151 Gliomas . 156 Meningiomas 158 Granular Cell Tumors 159 Chordomas 160 Schwannomas 162 6. Craniopharyngioma 7. Germ Cell Tumors of the Sella Turcica 167 173 8. Hematologic Tumors of the Sella Turcica Lymphoma and Leukemia Langerhans' Cell Histiocytosis 177 177 179 9. Vascular and Mesenchymal Tumors of the Sella Turcica 10. Metastatic Neoplasms of the Sellar Region 183 187 11. Tumor-like Lesions of the Sella Turcica 191 Hyperplasias Cysts Rathke's Cleft Cysts 191 197 197 Arachnoid Cysts Dermoid and Epidermoid Cysts Inflammatory Lesions Lymphocytic Hypophysitis Other Inflammatory Disorders 198 199 199 199 204 Miscellaneous Tumor-like Lesions 205 Aneurysms Meningoencephalocele 205 206 Hamartomas 206 Parathyroid Bone Lesion ("Brown Tumor") 206 Index 211