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Skull base

The base of skull is the most inferior area of the skull, composed of the endocranium and lower parts of the skull roof.

Anterior skull base

Midline skull base

Posterior skull base

Ventrolateral skull base

see Skull base surgery

see Skull base trauma.


The anatomy of the skull base is complex with multiple neurovascular structures in a small space. Understanding all of the intricate relationships begins with understanding the anatomy of the sphenoid bone, cavernous sinus, clivus.

The cavernous sinus contains the carotid artery and some of its branches; cranial nerves III, IV, VI, and V1; and transmits venous blood from multiple sources.

The clivus protects the brainstem and posterior cranial fossa. A thorough appreciation of the anatomy of these various areas allows for endoscopic endonasal approaches to the skull base 1).

Understanding the normal imaging appearance of skull base reconstruction is important for accurate postoperative interpretation and delineation between normal reconstructive tissue and recurrent neoplasm 2).

1)
Patel CR, Fernandez-Miranda JC, Wang WH, Wang EW. Skull Base Anatomy. Otolaryngol Clin North Am. 2016 Feb;49(1):9-20. doi: 10.1016/j.otc.2015.09.001. Review. PubMed PMID: 26614826.
2)
Nunes RH, Abello AL, Zanation AM, Sasaki-Adams D, Huang BY. Imaging in Endoscopic Cranial Skull Base and Pituitary Surgery. Otolaryngol Clin North Am. 2016 Feb;49(1):33-62. doi: 10.1016/j.otc.2015.09.003. Review. PubMed PMID: 26614828.
skull_base.txt · Last modified: 2017/08/29 17:52 by administrador