(1) 3D-VRT image of the osseous skull base from above is sho | Figure 1

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(1) 3D-VRT image of the osseous skull base from above is shown. Anterior skull base is bounded by frontal bones anteriorly and the lesser wing of the sphenoid and planum sphenoidale posteriorly. Central skull base, with its multitude of fissures and foramina, is made up of sphenoid bone and anterior temporal bone. It is bounded anteriorly by the lesser wing of the sphenoid and posterior planum sphenoidale and posteriorly by the dorsum sellae and petrous ridge. The posterior skull base extends from the dorsum sellae medially and petrous ridges laterally to the occiput posteriorly.

(2) 3D-VRT image of the osseous skull base from below highlights sphenoid bone with the foramen ovale and spinosum and occipital bone with its occipital condyle. Notice the frontal bone is not seen, but instead, maxillary, palatine, and zygomatic bones are present anteriorly.

Download the Skull Base Overview from Imaging Anatomy: Head and Neck, for free.

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