FIG 2. Cochleae in cases of facial nerve displacement were examined for presence and size of basilar, second, and apical turns.

A and B, Axial view CT scans of the temporal bone show pronounced anteromedial facial nerve migration bilaterally (black arrowheads), with pronounced widening of Bill's bar (black arrow).

C, Axial view CT scan of the temporal bone shows the right- sided hypoplastic cochlea with small first turn (black arrowhead). The left- sided cochlea was also hypoplastic and is not shown. (Same magnification as that shown in fig 1.)

D, Axial view CT scan of the temporal bone shows the right-sided hypoplastic cochlea with small second turn (black arrowhead). The left-sided cochlea was also hypoplastic and is not shown. (Same scale as that shown in fig 1.)