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Updated: Jun 3, 2026

09:53
Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
[Endoscopic removal of ethmoid osteomas under navigation guidance]
Xi-Cheng Song1, Li-Yan Chen, Qing-Quan Zhang
1Department of Otorhinolaryngology Head and Neck Surgery, Yuhuangding Hospital, Yantai, Shandong 264000, China. songxicheng@126.com
Summary
Minimally-invasive endoscopic ablation effectively removed ethmoid sinus osteomas in 19 patients using navigation systems. This accurate and secure technique is indicated for midline and localized ethmoid osteomas, with preoperative CT scans enhancing safety.
Area of Science:
- Otolaryngology
- Neurosurgery
- Medical Imaging
Background:
- Osteomas of the ethmoid sinuses can cause significant symptoms and pose surgical challenges.
- Traditional surgical approaches may involve open procedures with associated morbidity.
Purpose of the Study:
- To evaluate the efficacy and safety of endonasal endoscopic ablation for ethmoid sinus osteomas.
- To determine the role of navigation systems in improving surgical outcomes for these tumors.
Main Methods:
- Retrospective analysis of 19 patients (14-67 years) with ethmoid osteomas treated between April 2005 and October 2009.
- Preoperative sixteen-detector row computed tomography (CT) scan with 3D reconstruction.
- Endoscopic surgery guided by a navigation system was performed on all patients.
Main Results:
- Successful endoscopic removal of ethmoid osteomas in all 19 patients.
- 17 tumors were removed purely endoscopically; 2 required adjunct open procedures.
- Significant complications were rare, with most patients experiencing symptom resolution or improvement. One case of cerebrospinal fluid rhinorrhea resolved post-repair.
Conclusions:
- Endoscopic ablation with navigation guidance is an accurate, secure, and minimally-invasive option for ethmoid sinus osteomas.
- This technique is particularly indicated for midline and localized ethmoid osteomas.
- Preoperative CT scanning is crucial for ensuring surgical accuracy and safety.
