Table 11.1. Differential diagnosis of neoplasms and "tumor-like" lesions of the sellar region
Tumois of adenohypophyseal origin
Pituitary adenoma Pituitary carcinoma Tumors of neurohypophyseal origin
Granular cell tumor
Astrocytoma of posterior lobe and/or stalk (rare) Tumors of non-pituitary origin
Craniopharyngioma Germ cell tumors
Gliomas (hypothalamic, optic nerve/chiasm, infundibulum) Meningioma Hemangiopericytoma Chordoma Hemangioblastoma Lipoma
Giant cell tumor of bone
Sarcoma (chondrosarcoma, osteosarcoma, fibrosarcoma) Post-irradiation sarcomas Paraganglioma Schwannoma Glomangioma Esthesioneuroblastoma Primary lymphoma Melanoma Cysts, hamartomas and malformations Rathke's cleft cyst Arachnoid cyst Epidermoid cyst Dermoid cyst Gangliocytoma Metastatic tumors Carcinoma Plasmacytoma Lymphoma Leukemia Inflammatory conditions Infection/abscess Mucocele
Lymphocytic hypophysitis Sarcoidosis
Langerhans' cell histiocytosis Giant cell granuloma Vascular lesions
Internal carotid artery aneurysms Cavernous angioma
NB. Lesions in italics are discussed in the text.
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