The Journal of International
Advanced Otology
Case Report

Exteriorization of Petrous Bone Cholesteatoma by Endonasal Endoscopic Approach: A Case Report


Department of Otolaryngology, Ehime University School of Medicine, Toon, Ehime, Japan


Department of Otolaryngology, HITO Medical Center, Shikokuchuou, Ehime, Japan


Department of Neurosurgery, Ehime University School of Medicine, Toon, Ehime, Japan

J Int Adv Otol 2021; 17: 368-371
DOI: 10.5152/iao.2021.9153
Read: 687 Downloads: 309 Published: 01 July 2021

A 61-year-old woman presented with diplopia and headache. The patient had a longstanding history of petrous bone cholesteatoma (PBC) on the left side and had undergone multiple surgeries to address it. Computed tomography (CT) revealed a radiolucent lesion with bony destruction in the left petrous apex. Magnetic resonance imaging of the lesion revealed a hypointense area on T1-weighted images and a hyperintense area on T2-weighted and abnormal diffusion-weighted images. A diagnosis of recurrent petrous apex cholesteatoma was made. The patient was treated by exteriorization using an endoscopic endonasal approach. The patient is in remission and doing well. The ideal treatment of PBC is complete excision, though exteriorization using an endoscopic endonasal approach is considered a second option when excision is not possible.

Cite this article as: Nishida N, Fujiwara T, Satoshi S, et al. Exteriorization of petrous bone cholesteatoma by endonasal endoscopic approach: A case report. J Int Adv Otol. 2021; 17(4): 368-371. 

EISSN 2148-3817