External ear is located mostly on the outside of the body and the middle and inner ear areas are housed within the petrous part of the temporal bone.
The petrous part is a wedge shaped mass of the bone that is located between sphenoid and occipital bones in the cranial cavity. It is the most medial part of temporal bone, and is also the landmark dividing the middle and posterior cranial fossae from each other.
On physical examination, patients with temporal bone fractures may have hemorrhagic or clear otorrhea, hemotympanum, vertigo, facial paralysis, conductive or sensorineural hearing loss or ear canal laceration.
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