fig 3.
Case 3: 6-year-old girl with vertigo.
A, Axial CT scan shows a normal left foramen spinosum (arrow) and absence of the right foramen spinosum.
B, Axial CT scan through middle ear shows prominent soft tissue, representing facial nerve and PSA (arrow).
C, Coronal CT scan through middle ear shows prominent soft tissue, representing facial nerve and PSA (arrow).