The Journal of International
Advanced Otology
Case Report

Complete Removal of Stage II Congenital Cholesteatoma Destroying Temporomandibular Joints Using Transcanal Endoscopic Ear Surgery With a Mirror Technique: A Case Report


Department of Otorhinolaryngology-Head and Neck Surgery, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Tokyo, Japan

J Int Adv Otol 2022; 18: 88-91
DOI: 10.5152/iao.2022.9145
Read: 2301 Downloads: 574 Published: 01 January 2022

Transcanal endoscopic ear surgery (TEES) provides wide-angle clear vision for otologic surgery. We report the utility of TEES with the mirror technique for the complete removal of a congenital cholesteatoma in a 3-year-old boy. A white mass was observed through the tympanic membrane, and a congenital cholesteatoma was suspected during the conservative treatment of otitis media with effusion. Pre-operative computed tomography (CT) revealed an irregular mass lesion in the left middle ear, with bone erosion in the hypotympanum. During surgery, an open-type cholesteatoma was observed, mainly in the middle lower tympanum. The cholesteatoma had destroyed the periphery of the temporomandibular joint, which was widely exposed. The cholesteatoma had also spread to the tympanic sinus. Careful observation with a forward-oblique viewing endoscope and a variable angle tympanic mirror enabled complete removal of the mass under endoscopic guidance. No recurrence was observed during the postoperative follow-up, although residual open-type congenital cholesteatoma may often result in recurrence. We believe that careful removal of the lesion under TEES, which allowed us to perform surgery under a secure view with illumination and magnification, may have facilitated complete removal and prevented recurrence.

Cite this article as: Ogawa S, Hosoya M, Fujioka M, Ogawa K. Complete removal of stage II congenital cholesteatoma destroying temporomandibular joints using transcanal endoscopic ear surgery with a mirror technique: A case report. J Int Adv Otol. 2022;18(1):88-91.

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