Temporal bone

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Template:Infobox Bone

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

The temporal bones are situated at the sides and base of the skull.

The temporal bone supports that part of the face known as the temple.

Parts

Each consists of five parts:

Composition

The structure of the squama is like that of the other cranial bones: the mastoid portion is spongy, and the petrous portion dense and hard.

Diagnosis

Physical Examination

Ear Nose and Throat

$Axial CT scan showing oblique left temporal bone fracture [1].$

Axial CT scan showing oblique left temporal bone fracture ^[1].
Hemotympanum (blood in the middle ear) causes a bluish discoloration of the drum ^[2].
Ruptured tympanic membrane and blood in the ear canal (surgeon's view)^[3].
$Battle's Sign. Bluish discoloration of the post-auricular region, associated with temporal bone fractures [4].$

Battle's Sign. Bluish discoloration of the post-auricular region, associated with temporal bone fractures ^[4].
Cerebrospinal fluid (CSF) otorrhea ^[5].
$Oblique left temporal bone fracture line crossing the mastoid process, into Henle's spine and the external auditory canal (surgeon's view)[6].$

Oblique left temporal bone fracture line crossing the mastoid process, into Henle's spine and the external auditory canal (surgeon's view)^[6].