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Updated: Sep 20, 2026

Endoscopic Cholesteatoma Surgery
Published on: January 19, 2022
[A case of squamous-cell carcinoma originating in external auditory canal cholesteatoma]
Hideharu Aoki1, Kouji Matsumoto
1Department of Otorhinolaryngology, Nippon Medical School Second Hospital, Kanagawa, Japan.
Abstract:
External auditory canal cholesteatoma (EACC) is not a rare lesion. Conservative treatment under an operating microscope is appropriate for most cases. On the other hand, squamous-cell carcinoma of middle ear and external auditory canal is less common. We report a case of a 66-year-old man. He suffered from squamous-cell carcinoma following EACC. A biopsy from the external auditory canal was not useful for diagnosis. A biopsy during the first operation revealed squamous-cell carcinoma. The patient was treated by extended radical mastoidectomy and radiotherapy continuously. There is no evidence of recurrence after 14 months.
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