A longitudinal fracture is present in the left temporal bone, seen on these axial images,
which involves the middle ear cavity and extends anteriorly along the petrous bone
in the region of the genu of the facial nerve. The middle ear cavity and most of the
mastoid air cells are abnormally opacified. Compare this with the normally aerated
epitympanum on the left image. The ossicles are in normal position.
Axial (right), and direct coronal (left) images again demonstrate a longitudinal fracture
and abnormal opacification of the middle air. The fracture extends through the tegmen
(roof of the left tympanic cavity).
Key words: trauma
Longitudinal temporal bone fracture