Internal auditory canal ct cholesteatoma1/28/2024 ![]() The combination of inherently complex native temporal bone anatomy with unique, region-specific postoperative change makes evaluation of this region challenging. ![]() ![]() Postsurgical changes of the temporal bone can be difficult for radiologists to interpret accurately. Postoperative temporal bone image interpretation is challenging.Ĭareful review of the patient’s clinical and operative history is critical to identify expected postoperative appearance versus complications.Ĭommon surgical procedures involving the temporal bone include tympanostomy, mastoidectomy, temporal bone resections, internal auditory canal and cerebellopontine angle surgical approaches, superior semicircular canal dehiscence repair, sigmoid sinus wall reconstruction, ossicular reconstruction, and auditory implant placement.Ĭommon interpretive pitfalls include lack of knowledge regarding expected postsurgical anatomic alterations, appearance of otologic hardware, correct hardware positioning, as well as delayed recognition of postoperative complications.Ĭommon postoperative temporal bone complications include postoperative hemorrhage, excessive pneumocephalus, brain retraction injury, vascular injury, cerebrospinal fluid leak, hardware malposition or migration, and bone or ossicular dehiscence. ![]()
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