OtoRhinoLaryngology Portal

The Leading Online Gallery of Otolaryngology and Head & Neck Surgery Specialty

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Human Skull with Brain Endocast, Paranasal Sinuses, and Mastoid

Mastoid Air Cells and Mastoid Pneumatization

The Stylomastoid Foramen

MT- mastoid tip, arrow- stylomastoid foramen where the extracranial course of facial nerve begins

3D reconstructed CT-scan showing stylomastoid foramen (arrow). 

[1 - osseous external ear meatus, 2 - stylomastoid process, M - mastoid bone]

 

 3D reconstructed CT-scan showing an elongated styloid process (red arrow) which is implicated in Eagle syndrome.  (white arrow points to stylomastoid foramen where the facial nerve exit the skull)

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