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Surgical Management of Preauricular Sinus: A Histopathological Analysis
Qilin Huang1, Guixiang Xiao2, Xia Wu1
1Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Ear, Nose, & Throat Journal
|December 16, 2024
Summary
Removing a small part of the helical cartilage during preauricular sinus surgery can prevent recurrence. Careful dissection of the squamous tract from cartilage is also recommended for complete sinus excision.
Area of Science:
- Otolaryngology
- Surgical Pathology
Background:
- Preauricular sinus surgery lacks consensus on helical cartilage removal.
- Histopathological understanding is crucial for surgical decision-making.
Purpose of the Study:
- To analyze histopathological characteristics of preauricular sinuses.
- To inform surgical techniques for preventing recurrence.
Main Methods:
- Histopathological review of 54 preauricular sinus surgery cases (Oct 2020 - Oct 2021).
- Analysis of tract diameter, infection severity, and tissue characteristics.
Main Results:
- Mean distance between tract and cartilage: 0.38 mm.
- Myofibroblast proliferation higher in recurrent cases.
- Cysts, granulation tissue, and giant cells more frequent in primary cases.
Conclusions:
- Recommend removing a small portion of ascending helix cartilage to prevent preauricular sinus recurrence.
- Alternatively, ensure complete squamous tract dissection from cartilage.
