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Updated: Jun 24, 2026

Surgical Treatment of an Endolymphatic Sac Tumor
Published on: May 26, 2023
A primary large cholesterol cyst of the mastoid presenting with dysgeusia
Chul-Ho Jang1, Young Ho Kim, Yong Bum Cho
1Department of Otolaryngology, Chonnam National University Medical School, Gwangju, South Korea. chulsavio@hanmail.net
Abstract:
The occurrence of postoperative secondary cholesterol cysts in the mastoid has been previously reported, however the occurrence of a primary large cholesterol cyst in the mastoid with bony destruction of the facial nerve has rarely been reported. The case report of a 17-year-old female patient with a primary large cholesterol cyst with dysgeusia is presented. Computed tomography and magnetic resonance imaging findings for the lesion distinguish a cholesterol granuloma, cholesteatoma and vascular tumor. The patient underwent a canal wall down mastoidectomy with mastoid obliteration. A dehiscent portion of the mastoid segment of the facial nerve was visible within the cavity; the gross finding of the facial nerve was edematous in appearance. Five years later, there has been no recurrence of disease.
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