axial CT images through the skull base show multiple fractures involving the
basisphenoid, sphenoid sinus and left temporal bone. The temporal bone
fracture is longitudinal in orientation.
Fractures also involve the R lessor wing of the sphenoid, the planum sphenoidale, and
squamosal portion of temporal bone. The ethmoid and sphenoid sinuses are partially opacified.
High resolution thin sections through the left temporal bone show the longitudinal
fracture extending into the mesotympanum, which is opacified. The malleus and
incus are intact. The fracture traverses near the geniculate ganglion and genu
of the facial nerve.
The fracture extends through the mastoid air cells and may involve the tegmen.
The incudomalleolar joint is widened, indicating subluxation of the ossicles.
Key words: temporal bone orbit trauma
Skull base & longitudinal
temporal bone fractures