Granular Cell Tumor of the Eustachian Tube: A Case Report

John Ming Ren Loh; Chung-Wei Lin; Shun-Chen Huang; Hsin-Ching Lin

doi:10.1002/lary.32364

Granular Cell Tumor of the Eustachian Tube: A Case Report

Laryngoscope. 2025 Jun 23. doi: 10.1002/lary.32364. Online ahead of print.

Authors

John Ming Ren Loh^{1

2

3

4}, Chung-Wei Lin², Shun-Chen Huang⁵, Hsin-Ching Lin^{1

2

6

7

8}

Affiliations

¹ Department of Otolaryngology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.
² Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.
³ Department of Otorhinolaryngology, Head & Neck Surgery, Changi General Hospital, Changi, Singapore.
⁴ Department of Sleep Medicine, Surgery & Science, Changi General Hospital, Changi, Singapore.
⁵ Department of Anatomic Pathology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.
⁶ College of Medicine, Chang Gung University, Taoyuan and Kaohsiung, Taiwan.
⁷ Sleep Center and Robotic Surgery Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.
⁸ Department of Business Management, Institute of Healthcare Management, Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.

PMID: 40546102
DOI: 10.1002/lary.32364

Abstract

Granular cell tumor (GCT), first described by Abrikosoff in 1926, is an uncommon neoplasm arising from Schwann cells. GCTs can occur in any part of the body and appear as gray-white or yellow lesions of variable size. The nasopharynx is an uncommon site of presentation, with only one other case reported. We present the first documented case to our knowledge of a GCT that exhibited complete spontaneous regression over a 13-year follow-up.

Keywords: Eustachian tube; ear fullness; granular cell tumor.

Publication types

Case Reports