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Prevalence of the Onodi cell in the Polish adult population: an anatomical computed tomography study
Affiliations- Department of Anatomy, Jagiellonian University Medical College, Krakow, Poland
- Faculty of Philology, Department of Polish Dialectology and Logopaedics, University of Lodz, Poland
- Norbert Barlicki Memorial Teaching Hospital No. 1 of the Medical University of Lodz, Poland
- Department of Radiology, Jagiellonian University Medical College, Krakow, Poland
- Department of Anatomy, All India Institute of Medical Science, Patna, Bihar, India
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Abstract
Background: Onodi cell is a posterior ethmoid air cell with the optic canal bulging
into it; the common position of the bulge is into the sphenoid sinus, usually
immediately posterior to the posterior ethmoid air cells. Variable pneumatisation
patterns lead to various structures of lamellae and sinuses occasionally exposing
important nerves and vessels, such as the optic and vidian nerves, internal carotid
artery and cavernous sinus. In clinical practice, special imaging techniques are
used to navigate through the paranasal sinuses and hence avoid injury to these
structures. This study is aimed to determine the prevalence of the Onodi cell in
the Polish population and compare it with other reported occurrences.
Materials and methods: A retrospective analysis of 296 computed tomography
(CT) scans of patients treated in Krakow, Poland, using a Siemens Somatom Sensation
16 spiral CT scanner. No contrast medium was administered.
Results: The Onodi cell was found in 31 out of the 296 patients, or approximately
10.5%, consistent with the majority of research reporting on Onodi variants. Additionally,
there was one presentation of a bilateral Onodi cell in a male patient.
No statistically significant difference was found between the male and female
populations with a positive identification of the variant (p = 0.095, Chi2 test).
Conclusions: This study helped approximate the Onodi variant prevalence of
10.47%, falling within a commonly reported range 8–14%. This gives clinicians
and surgeons a better understanding of this variant’s structure and significance,
and therefore an opportunity to improve treatment outcomes and research.
Abstract
Background: Onodi cell is a posterior ethmoid air cell with the optic canal bulging
into it; the common position of the bulge is into the sphenoid sinus, usually
immediately posterior to the posterior ethmoid air cells. Variable pneumatisation
patterns lead to various structures of lamellae and sinuses occasionally exposing
important nerves and vessels, such as the optic and vidian nerves, internal carotid
artery and cavernous sinus. In clinical practice, special imaging techniques are
used to navigate through the paranasal sinuses and hence avoid injury to these
structures. This study is aimed to determine the prevalence of the Onodi cell in
the Polish population and compare it with other reported occurrences.
Materials and methods: A retrospective analysis of 296 computed tomography
(CT) scans of patients treated in Krakow, Poland, using a Siemens Somatom Sensation
16 spiral CT scanner. No contrast medium was administered.
Results: The Onodi cell was found in 31 out of the 296 patients, or approximately
10.5%, consistent with the majority of research reporting on Onodi variants. Additionally,
there was one presentation of a bilateral Onodi cell in a male patient.
No statistically significant difference was found between the male and female
populations with a positive identification of the variant (p = 0.095, Chi2 test).
Conclusions: This study helped approximate the Onodi variant prevalence of
10.47%, falling within a commonly reported range 8–14%. This gives clinicians
and surgeons a better understanding of this variant’s structure and significance,
and therefore an opportunity to improve treatment outcomes and research.
Keywords
Onodi cell, sphenoid sinus, anatomy, computed tomography
About this articleTitle
Prevalence of the Onodi cell in the Polish adult population: an anatomical computed tomography study
Journal
Issue
Article type
Original article
Pages
885-891
Published online
2023-01-17
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776
Article views/downloads
587
DOI
Pubmed
Bibliographic record
Folia Morphol 2023;82(4):885-891.
Keywords
Onodi cell
sphenoid sinus
anatomy
computed tomography
Authors
J. Jaworek-Troć
K. Ochwat
J. A. Walocha
I. Zamojska
M. Lipski
A. Żytkowski
R. Chrzan
J. Zawiliński
S. K. Ghosh
M. P. Zarzecki
References (33)- Al-Zaidi HM, Badr HM. Unusual large central sphenoethmoidal cell separating the two sphenoid sinuses: a case report. Transl Res Anat. 2022; 28: 100212.
- Anusha B, Baharudin A, Philip R, et al. Anatomical variants of surgically important landmarks in the sphenoid sinus: a radiologic study in Southeast Asian patients. Surg Radiol Anat. 2015; 37(10): 1183–1190.
- Burdan F, Dworzański W, Cendrowska-Pinkosz M, et al. Anatomical eponyms - unloved names in medical terminology. Folia Morphol. 2016; 75(4): 413–438.
- Daghighi MH, Daryani A. Evaluation of anatomic variations of paranasal sinuses. Internet J Otorhinolaryngol. 2007; 7(1).
- Earwaker J. Anatomic variants in sinonasal CT. RadioGraphics. 1993; 13(2): 381–415.
- Elwany S, Elsaeid I, Thabet H. Endoscopic anatomy of the sphenoid sinus. J Laryngol Otol. 1999; 113(2): 122–126.
- Jaworek-Troć J, Iwanaga J, Chrzan R, et al. Anatomical variations of the main septum of the sphenoidal sinus and its importance during transsphenoidal approaches to the sella turcica. Transl Res Anat. 2020; 21: 100079.
- Jaworek-Troć J, Walocha JA, Chrzan R, et al. Protrusion of the carotid canal into the sphenoid sinuses: evaluation before endonasal endoscopic sinus surgery. Folia Morphol. 2021; 80(3): 642–649.
- Jaworek-Troć J, Walocha JA, Lipski M, et al. Agenesis of the sphenoid sinus and a single sphenoid sinus: a computed tomography anatomical evaluation. Folia Morphol. 2021; 80(4): 947–953.
- Jaworek-Troć J, Walocha JA, Loukas M, et al. Extensive pneumatisation of the sphenoid bone: anatomical investigation of the recesses of the sphenoid sinuses and their clinical importance. Folia Morphol. 2021; 80(4): 935–946.
- Jaworek-Troć J, Walocha JA, Skrzat J, et al. A computed tomography comprehensive evaluation of the ostium of the sphenoid sinus and its clinical significance. Folia Morphol. 2022; 81(3): 694–700.
- Jaworek-Troć J, Zarzecki M, Bonczar A, et al. Sphenoid bone and its sinus - anatomo-clinical review of the literature including application to FESS. Folia Med Cracov. 2019; 59(2): 45–59.
- Jaworek-Troć J, Zarzecki M, Lusina D, et al. Incorporation of the sphenoid sinuses' septum / septa in the carotid canal - evaluation before the FESS. Folia Med Cracov. 2020; 60(4): 65–78.
- Jaworek-Troć J, Zarzecki M, Mróz I, et al. The total number of septa and antra in the sphenoid sinuses - evaluation before the FESS. Folia Med Cracov. 2018; 58(3): 67–81.
- Jaworek-Troć J, Zarzecki M, Zamojska I, et al. The height and type of the main septum in the sphenoid sinuses – evaluation before the fess. Folia Med Crac. 2020; 60(3): 65–74.
- Jaworek-Troć J, Zarzecki M, Zamojska I, et al. The dimensions of the sphenoid sinuses: evaluation before the functional endoscopic sinus surgery. Folia Morphol. 2021; 80(2): 275–282.
- Kainz J, Stammberger H. Danger areas of the posterior rhinobasis. Acta Otolaryngol. 1992; 112: 852–861.
- Kaplanoglu H, Kaplanoglu V, Toprak U, et al. Surgical measurement of the sphenoid sinus on sagittal reformatted CT in the turkish population. Eurasian J Med. 2013; 45(1): 7–15.
- Kazkayasi M, Karadeniz Y, Arikan OK. Anatomic variations of the sphenoid sinus on computed tomography. Rhinology. 2005; 43(2): 109–114.
- Kolecki R, Pręgowska A, Dąbrowa J, et al. Assessment of the utility of Mixed Reality in medical education. Transl Res Anat. 2022; 28: 100214.
- Lu Y, Pan J, Qi S, et al. Pneumatization of the sphenoid sinus in Chinese: the differences from Caucasian and its application in the extended transsphenoidal approach. J Anat. 2011; 219(2): 132–142.
- Lupascu M, Comsa G, Zainea V. Anatomical variations of the sphenoid sinus - a study of 200 cases. ARS Medica Tomitana. 2014; 20(2): 57–62.
- Márquez S, Tessema B, Clement PAr, et al. Development of the ethmoid sinus and extramural migration: the anatomical basis of this paranasal sinus. Anat Rec (Hoboken). 2008; 291(11): 1535–1553.
- Nitinavakarn B, Thanaviratananich S, Sangsilp N. Anatomical variation of the lateral nasal wall and paranasal sinuses: a CT study for endoscopic sinus surgery (ESS) in Thai patients. J Med Assoc Thai. 2005; 88(6): 763–768.
- Onodi A. Die Sehstorungen und Erblindung nasalen Ursprunges, bedingt durch Erkrankungen der hinteren Nebenhohlen. Z Augenheilkd. 1904; 12: 23–46.
- Ozturan O, Yenigun A, Degirmenci N, et al. Co-existence of the Onodi cell with the variation of perisphenoidal structures. Eur Arch Otorhinolaryngol. 2013; 270(7): 2057–2063.
- Pérez-Piñas I, Sabaté J, Carmona A, et al. Anatomical variations in the human paranasal sinus region studied by CT. J Anat. 2000; 197(Pt 2): 221–227.
- Sareen D, Agarwal AK, Kaul JM, et al. Study of sphenoid sinus anatomy in relation to endoscopic surgery. Int J Morphol. 2005; 23(3): 261–266.
- Seddighi A, Seddighi AS, Mellati O, et al. Sphenoid sinus: anatomic variations and their importance in trans-sphenoid surgery. Int Clin Neurosci J. 2014; 1(1): 31–34.
- Sethi DS, Stanley RE, Pillay PK. Endoscopic anatomy of the sphenoid sinus and sella turcica. J Laryngol Otol. 1995; 109(10): 951–955.
- Stecco A, Boccafoschi F, Falaschi Z, et al. Virtual dissection table in diagnosis and classification of Le Fort fractures: A retrospective study of feasibility. Transl Res Anat. 2020; 18: 100060.
- Tan HKK, Ong YK. Sphenoid sinus: an anatomic and endoscopic study in Asian cadavers. Clin Anat. 2007; 20(7): 745–750.
- Żytkowski A, Tubbs R, Iwanaga J, et al. Anatomical normality and variability: Historical perspective and methodological considerations. Transl Res Anat. 2021; 23: 100105.
