Report an error   


Submitted: 16 May 2007 Modified: 16 April 2019
HERDIN Record #: PCHRDPC051052

Computed tomographic analysis of paranasal sinus anatomic variations among Filipinos.

Christopher  A. Santos,
Peter Simon Jarin

OBJECTIVE: To determine prevalence of the different bony anatomic variations and mucosal abnormalities among Filipino patients seen in a tertiary hospital.


STUDY DESIGN: Descriptive Study


SETTING: This study was conducted at the Radiology department of said hospital where evaluation of high resolution PNS CT was performed by the investigators.


PATIENTS:
a. Inclusion criteria: 1. Patients were randomly selected from a pool of subjects who had a computed tomography scan of the paranasal sinuses (screening coronal) done within the last two years;
b. Exclusion criteria: 1. Patients of foreign nationality 2. Previous nasal surgery


RESULTS: A total of 51 plates were evaluated, this number was multiplied by 2 to represent both nasal cavities giving a total population of 102. This was however not done for the variants olfactory fossa type and septal deviation. Results showed the incidence of the following variants: Agger Nasi Cells=86 percent, Ethmoid Bulla=97 percent, Haller Cells=28 percent, most common Recessus Terminalis of the Uncinate Process=75 percent (Lamina Papyracea), most common Olfactory Fossa Type 1=15.6 percent, Floating Ant Ethmoid Artery= 65.6 percent, Normal Middle Turbinate=73.5 percent, Type 1 Septal Deviation was more common=54.9 percent, Dehiscence of Lamina Papyracea=37 percent, Bulging Orbital Contents=22 percent, Pneumatized Crista Galli=98 percent, Hypoplasia of a paranasal sinus was a rare occurrence=2.9 percent (all involving the Frontal Sinus).


CONCLUSION: High resolution PNS screening coronal is an important tool in determining the different anatomic variants which will make for better pre-operative planning.

Publication Type
Journal
Publication Sub Type
Journal Article, Original
Title
Philippine Journal of Otolaryngology Head and Neck Surgery
Frequency
Semi-Annual
Publication Date
2004
Volume
19
Issue
3-4
Page(s)
155-160
LocationLocation CodeAvailable FormatAvailability
Philippine Council for Health Research and Development Library Box No. 64 Fulltext Print Format (Request Document)
Philippine Society of Otolaryngology-Head and Neck Surgery Abstract Print Format
Philippine Council for Health Research and Development Fulltext pdf (Request Document)
1. Maniglia, A. J.. "Fatal and Major Complications of secondary nasal and sinus surgery" Laryngoscope 99, 276-281, 1989. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/2818708
2. Acosta, Vicente . "Risk areas in endoscopic sinus surgery: A review of 175 computed tomography scans of the sinuses among patients with nasal polyposis" Philippine Journal of Otolaryngology-HNS ,
3. Zinreich, S.J. D., Kennedy, A. , Rosenbaum, B. , Gayler, A. , Kumar, H. . "Paranasal Sinuses: CT Imaging Requirements for Endoscopic Surgery" Radiology 163, 769-775, 1987. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/3575731
4. Stammberger, H. . Functional Endoscopic Sinus Surgery St. Louis, Missouri: Mosby-Year Book, Inc., 1991. 529pp.
5. Teatini, G. , Simonetti, G. , Salvolini, U. , Masala, W. , Meloni, F. , Rovasio, S. , Deodola, G. L.. "Computed Tomography of the Ethmoid Labyrinth and Adjacent Structures: Normal anatomy and most common variants" Annals of Otology and Rhinology 96, 239-243, 1987. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/3605945
6. Lame, F. , Smoker, W.R. K.. "The Osteomeatal Unit and Endoscopic Surgery: Anatomy, Variations and imaging Findings in Inflammatory Diseases" American Journal of Radiology 159, 849-857, October 1992. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/1529853
7. Meyers, R. M., Valvassori, G. . "Interpreation of Anatomic Variations of Computed Tomography Scans of the Sinuses: A Surgeon" Laryngoscope 108, 422-425, March 1998. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/9504618
8. Terrier, F. , Weber, W. , Ruefenacht, D. , Porcellini, B. . "Anatomy of ethmoid: CT, Endoscopic, and Macroscopic" American Journal of Roentgenology 144, 493-500, March 1985. Retrieved from: http://www.scribd.com/doc/88498980/Anatomy-of-the-Ethmoid-CT-Endoscopic-And-Macroscopic
9. Ohnishi, T. , Tachibana, T. , Kaneko, Y. , Esaki, S. . "High-Risk Areas in Endoscopic Sinus Surgery and Prevention of Complications" Laryngoscope 103, 1181-1185, October 1993. Retrieved from: http://onlinelibrary.wiley.com/doi/10.1288/00005537-199310000-00020/abstract
10. Bansberg, S. , Harner, G. , Forbes, G. . "Relationship of hte Optic Nerve to the Paranasal Sinuses as Shown by Computed Tomography" Otolaryngology-Head and Neck Surgery 96(4): 331-335, April 1987. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/3108820
11. Krmpotic-Nemanic, J. , Vinter, I. , Hat, J. , Jalsovec, D. . "Variations of the Ethmoid Labyrinth and Sphenoid Sinus and CT Imaging" European Archives Otorhinolaryngology 250, 209-212, 1993. Retrieved from: http://www.springerlink.com/content/r5m1717v350011l8/
12. Elwany, S. , Elsaeid, I. , Thabet, H. . "Endoscopic Anatomy of the Sphenoid Sinus" The Journal of Laryngology and Otology 113, 122-126, February 1999. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/10396560
13. Stankiewicz, J. A.. "Complications of Endoscopic Nasal Surgery: Occurence and Treatment" American Journal of Rhinology 1, 45-49, 1987. Retrieved from: http://www.ingentaconnect.com/content/ocean/ajr/1987/00000001/00000001/art00006
14. Chow, J. , Mafee, M. F.. "Radiologic Assessment preoperative to endoscopic sinus surgery" OCNA 22(4): 691-701, 1989. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/2771413
15. Dessi, P. , Moulin, G. , Triglia, J. M., Zanaret, M. , Cannoni, M. . "Difference in Height of the Right and Left Ethmoidal roofs: a Possible Risk Factor for Ethmoidal Sugery" The Journal of Laryngology and Otology 168, 261-262, March 1994. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/8169516
16. Mladina, , Bastaic, . "What Do We Know about Septal Deformities?" Journal of Rhinology 4(2): 1997
17. Kayalioglu, , Oyar, , Govsa, . "Nasal cavity and paranasal sinus bony variations: a computed tomographic study" Rhinology 38, 108-113, 2000. Retrieved from: http://www.ncbi.nlm.nih.gov/pubmed/11072655

Copyright © One Window Project 2018. All rights reserved.