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Updated: May 18, 2026
09:32
Management of the Uncinate Process in No-Touch Laparoscopic Pancreaticoduodenectomy
Published on: May 5, 2023
The normal uncinate process: histology and clinical relevance
Gilead Berger1, Ephraim Eviatar, Tatiana Kogan
1Ear, Nose, and Throat Histopathological Research Laboratory of Department of Otolaryngology-Head and Neck Surgery, Meir Medical Center, 59 Tchernichovsky St., Kfar Saba, 44281, Israel. berger45@netvision.net.il
Summary
This study details the histology and morphometry of the uncinate process (UP), revealing distinct tissue characteristics compared to turbinates. Findings support preserving UP anatomy in chronic sinus disease management.
Area of Science:
- Otorhinolaryngology
- Anatomy
- Histology
Background:
- The uncinate process (UP) is a key anatomical structure in the ethmoid infundibulum.
- Understanding its histological and morphometric properties is crucial for sinus surgery.
Purpose of the Study:
- To conduct a detailed histological and morphometric assessment of the normal uncinate process (UP).
- To compare the UP's soft tissue and bony elements with neighboring inferior and middle turbinates.
- To inform surgical approaches for chronic rhinosinusitis.
Main Methods:
- Prospective, non-randomized, controlled trial across three centers.
- Histological and morphometric analysis of 16 adult UP samples.
- Comparison with 28 age- and gender-matched archival turbinate samples.
Main Results:
- UP mucosal layers contain loose connective tissue, inflammatory cells, glands, and venules.
- UP bone is either thin lamellar compact bone or thicker cancellous bone.
- Significant differences observed in connective tissue, gland, and vein area fractions compared to turbinates.
Conclusions:
- The uncinate process (UP) exhibits unique histological and morphometric features.
- These differences suggest distinct physiological roles for the UP compared to turbinates.
- Preserving UP anatomy with bone- and mucosa-sparing techniques is recommended for chronic sinus disease.
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