A Radiological Study of Anatomical Variations of Uncinate Process
Shrinath D Kamath Patla, Pretty Rathnakar, Vadisha S Bhat, Jayaramesh
Keywords :
Aggar nasi,Cribriform plate,Lamina papyracea,Middle turbinate,Pneumatization,Uncinate process
Citation Information :
Patla SD, Rathnakar P, Bhat VS, J. A Radiological Study of Anatomical Variations of Uncinate Process. Clin Rhinol An Int J 2016; 9 (2):59-61.
(a) To study the variations in the superior attachment of uncinate process. (b) Incidence of pneumatization of uncinate process was also studied.
Materials and methods
A total 200 sides of 100 CT scans of paranasal sinuses coronal section were studied for variations in the superior insertion of uncinate process using Landsberg and Friedman classification. Incidence of pneumatization of uncinate process was also studied.
Results
In our study out of 200 sides, type 6 attachment was commonest (41%) followed by types 1 and 2. Pneumatization of the uncinate was seen in very small percentage of cases.
Conclusion
Lateral insertion of uncinate (lamina papyracea + aggar nassi) is the commonest variant followed by the insertion into the skulbase. Pneumatization of uncinate is rare.
Clinical significance
Though the inferior attachment of the uncinate is almost constant the superior attachment has several variations, the knowledge of which is very important for the endoscopic surgeon to avoid intraoperative complications.
How to cite this article
Patla SDK, Rathnakar P, Bhat VS, Jayaramesh. A Radiological Study of Anatomical Variations of Uncinate Process. Clin Rhinol An Int J 2016;9(2):59-61.
Functional endoscopic sinus surgery. The Messerklinger technique. Philadelphia: BC Decker; 1991.
Nasal cavity anatomy, physiology, and anomalies on CT scan. [Internet] [updated 2011 Mar 29; cited 2012 Oct 17]. Available from: http://emedicine.medscape.com/article/875126-overview#aw2aab6b4
Maxillary sinus hypoplasia: classification and description of associated uncinate process hypoplasia. Otolaryngol Head Neck Surg 1990 Nov;103(5 Pt 1):759-765.
Variations of the uncinate process of the lateral nasal wall with clinical implications. Clin Anat 1998;11(5):295-303.
A computer-assisted anatomical studyofthenasofrontalregion. Laryngoscope 2001 Dec;111(12):2125-2130.
The relationship between frontal sinusitis and localization of the frontal sinus outflow tract: a computer-assisted anatomical and clinical study. Arch Otolaryngol Head Neck Surg 2005 Jun;131(6):518-522.
Anatomic variations of uncinate process observed in chronic sinusitis. Indian J Otolaryngol Head Neck Surg. DOI: 10.1007/s12070-012-0612-8
Clinical implications of the uncinate process in paranasal sinusitis: radiological evaluation. Am J Rhinol 1995 May;9(3):131-135.
Anatomic variations of the lateral nasal wall in the computed tomography scans of patients with chronic rhinosinusitis. Am J Rhinol 2001 Nov-Dec;15(6):371-375.
A computerized tomographic Study of uncinate process of ethmoid bone. Int J Anat Res 2015 Jan;3(1):917-921.
Anatomic variants in sinonasal CT. Radiographics 1993 Mar;13(2):381-415.
Clinically relevant frontal sinus anatomy and physiology. Otolaryngol Clin North Am 2001 Feb;34(1):1-22.
Anatomical variants of the uncinate process -CT scan imaging study. Romanian J Rhinol 2012 Jul-Sep;2(7):140-148.
Paranasal sinus bony anatomic variations and mucosal abnormalities: CT analysis for endoscopic sinus surgery. Laryngoscope 1991 Jan;101(1 Pt 1):56-64.
Anatomic variations of the paranasal sinuses: CT examination for endoscopic sinus surgery. Auris Nasus Larynx 1999 Jan;26(1):39-48.
