Translabyrinthine Petrous Apex Cholesteatoma Surgery with Hearing Preservation

Figure 1

(a, b) Preoperative axial CT showing (asterixs) the petrous apex with bone erosion and a titanium plate covering the partially covering anterior limitation of the temporal bone. (c, d) Non-EPI DWI with coronal and axial planes. Note the diffusion restriction in the petrous apex of the left temporal bone.