Skull base tumor [Neurosurgery Wiki]

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====== Skull base tumor ======

[[Skull base]] tumors are relatively rare. 

see [[Skull base meningioma]].



Schwannomas comprise less than 10% of all primary intracranial tumors. Schwannomas of the vestibular nerve are the most common neoplasms that involve the temporal bone and represent 75% of tumors that occupy the cerebellopontine angle cistern.

Chondrosarcomas comprise approximately 0.1% of all intracranial tumors. Half of these develop at the cranial base.

Chordomas also comprise approximately 0.1% of all intracranial tumors. Forty percent of chordomas develop at the skull base.

Skull base metastases, not including direct extension, occur in 4% of cancer patients.

====Types====

====Anterior cranial fossa====

[[Anterior cranial fossa tumor]].


====Middle cranial fossa====

[[Middle cranial fossa tumor]].


===== Posterior cranial fossa tumor =====

[[Posterior cranial fossa tumor]].

===== Other skull base conditions =====


Rathke’s cleft cyst



Cerebrospinal fluid (CSF) leak

Encephaloceles

Fibrous dysplasia


===== Surgery =====

[[Skull base tumor surgery]].