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Normal anatomy of the base of the skull, orbit, pituitary and cranial nerves
  1. Shelley A Renowden
  1. Correspondence to Dr Shelley A Renowden, Department of Neuroradiology, Frenchay Hospital, Clinical Support Services Directorate, Bristol BS16 1LE, UK; shelley.renowden{at}north-bristol.swest.nhs.uk

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This article illustrates the normal anatomy of the base of the skull, orbit, pituitary and some other cranial nerves.

Figure 1 illustrates the normal anatomy of the base of the skull in CT.

Figure 1

CT skull base: axial (A–K) and coronal (L–T) images.

The base of the skull is usually imaged using CT that employs fine cuts which most clearly images the bony structures—all those foramina and fossas learnt in anatomy. This may be complemented by MRI where there are concerns about soft tissue abnormalities.

CT of the base of the skull is specifically indicated in patients with head injuries where a skull base …

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