Table 1.

Tumors of skull base and their distribution in relations to anatomic localization (related to anterior, middle and posteriori cranial fossa).

Anterior	Middle	Posterior
Primary and secondary tumors	Chordoma	Paraganglioma
Esthesioneuroblastoma	Chondrosarcoma	Neurilemoma
Chondroma	Meningioma	Meningioma
Chondrosarcoma	Neurilemoma	Chondrosarcoma
Tumors invading from adjacent structures	Paraganglioma	Chordoma
Carcinoma (mainly squamous cell carcinoma from nasal cavity)	Glioma
Adenoid cystic carcinoma	Teratoma
Lymphoma	Squamous cell carcinoma
Plasmocytoma	Plasmocytoma
Melanoma malignoma	Lymphoma
Pituitary gland tumors (most common: prolactioma)	Metastatic tumors
Craniopharyngioma
Lipoma
Hemangioma
Chordoma
Neurilemoma
Teratoma
Metastatic tumors