Identification of Onodi cell and new classification of sphenoid sinus for endoscopic sinus surgery

Wada, Keita; Moriyama, Hiroshi; Edamatsu, Hideo; Hama, Takanori; Arai, Chiaki; Kojima, Hiromi; Otori, Nobuyoshi; Yanagi, Kiyoshi

doi:10.1002/alr.21567

Cited by 38 publications

(30 citation statements)

References 23 publications

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“…[ 5 ], Nomura et al [ 11 ], and Chmielik et al [ 20 ]. The results of this study revealed higher prevalence of SEC than the CT studies of Al-Abri et al [ 21 ], Leunig et al [ 22 ] and Pérez-Pińas et al [ 23 ], and our results were also lower than the CT reports of Kasemsiri et al [ 24 ], Wada et al [ 25 ] and Tomovic et al [ 4 ]. In addition, in a CT study involving the patients with both rhinosinusitis and healthy volunteers, the SEC prevalence was found to be 9% in healthy volunteers and 7% in the patients with rhinosinusitis [ 26 ].…”

Section: Discussioncontrasting

confidence: 74%

“…In the light of the above data, regarding the inclusion criteria, studies on SEC prevalence have been performed either on chronic sinus disease as this study or on randomly paranasal sinus CTs or cadaveric specimens. The prevalence of SEC in our study was performed on chronic sinus disease and our results were compared with the CT studies of Nomura et al [ 11 ] and Wada et al [ 25 ]. This study's results were also higher than healthy individuals in the CT study (Table 5 ).…”

Section: Discussionmentioning

confidence: 91%

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Sphenoethmoid Cell: The Battle for Places Inside of the Nose Between a Posterior Ethmoid Cell and Sphenoid Sinus: 3D-Volumetric Quantification

Şentürk¹,

Güler

Azgın³

et al. 2017

CMIR

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Background: Sphenoethmoid cells may be above the sphenoid sinus with/ or without con-tact to optical nerve. Although sphenoethmoid cells are theoretically considered to possibly influence the sphenoid sinus volume, we could not find any study in the literature on this issue.Aims: The aim of our study was to detect sphenoethmoid cells and measure the sphenoid sinus vol-ume using multiplanar computerized tomography and also investigate the correlation between the presence of sphenoethmoid cells and the sphenoid sinus volume.Methods: Retrospectively 141 patients who had available paranasal computerized tomography images were included in this study. The sphenoid sinus volumes of each patient were calculated individually for each side, and the relationship between the presence of sphenoethmoid cell and sphenoid sinus volume was investigated.Results: Sphenoethmoid cells were detected at 106 (37.5%) of the total 282 sides in 141 patients. No gender difference was observed. The total sphenoid sinus volume was significantly lower in the group of patients who had bilateral sphenoethmoid cells than in the sphenoethmoid cell negative group. In patients with a unilateral sphenoethmoid cell, a significant decrease in the sphenoid sinus volume was observed only for the side where the sphenoethmoid cell was located.Conclusion: It was observed that the sphenoethmoid cells caused a significant reduction in the sphe-noid sinus volume on the side where they were located. In the case of low sphenoid sinus aeration, the sphenoethmoid cell should be kept in mind. Further studies with an extended patient series are required to explore this issue.

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Section: Discussioncontrasting

confidence: 74%

Section: Discussionmentioning

confidence: 91%

Sphenoethmoid Cell: The Battle for Places Inside of the Nose Between a Posterior Ethmoid Cell and Sphenoid Sinus: 3D-Volumetric Quantification

Şentürk¹,

Güler

Azgın³

et al. 2017

CMIR

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“…A histopathological investigation revealed polyps in the Onodi cell. Wada et al 13 examined the efficacy of the identification of the Onodi cell and the classification of the sphenoid sinus using sagittal CT for a sphenoidotomy. These authors studied CT images of the patients' sinuses (n ¼ 261; 522 sides).…”

Section: Discussionmentioning

confidence: 99%

“…15 This disease typically occurs during childhood with progressive bilateral visual loss because of the neurodegeneration of retinal ganglion cells; multifactorial events may influence both its onset and phenotype. [13][14][15] Pretegiani et al 15 reported a neuro-ophthalmologic assessment of an Italian group of patients focusing on 60 OPA1 mutations carriers (52 symptomatic) belonging to 13 families. The authors discovered four known mutations, the most common being a lack of conscience c1034G > A, and a new missense mutation, c1193A > C. This new missense mutation was found in a 54-year-old woman with the late-onset phenotype.…”

Section: Discussionmentioning

confidence: 99%

Optic Neuropathy, Secondary to Ethmoiditis, and Onodi Cell Inflammation during Childhood: A Case Report and Review of the Literature

et al. 2019

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Optic neuropathy consists of several etiological events. The primary etiologies of its acute form include optic neuritis, ischemic optic neuropathy, inflammatory (nondemyelinating) disorders, and trauma. Its subacute and chronic forms are most often linked to compressive, toxic, nutritional, or hereditary-genetic causes. Visual loss, dyschromatopsia, and visual field defects are the presenting symptoms. The Onodi cell (sphenoethmoidal air cell) is an anatomic variant located laterally and superior to the sphenoid sinus; it is closely related to the optic nerve. Onodi cell disorders are rare and may be unnoticed in differential diagnoses of patients with ocular and neurological manifestations. Here, we present the case of a 12-year-old boy with headache and acute loss of sight characterized by hemianopsia in the left eye and retrobulbar optic neuropathy caused by left sphenoethmoidal sinusitis with the presence of Onodi cell inflammation. The diagnosis was confirmed by multilayered paranasal computed tomography and cerebral magnetic resonance imaging. Therapeutic treatment resulted in gradual improvement: at the 2-week follow-up, the patient no longer had headaches and his visual acuity returned to normal. Inflammation of Onodi cells should be considered in children with headache and abnormal vision.

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“…It is not practical to use the anterior wall of the sphenoid sinus because of its variation; that is, the anterior wall of the sphenoid sinus can exist either anterior to, inside, or posterior to the optic canal. 12 On sagittal images in which the optic nerve crossed the lamina papyracea, we defined the first wall anterior to the optic canal as the first wall (FW). We classified the PEA position relative to the FW as follows ( Figure 1 ): type 1, the PEA is located posterior to the FW; type 2, the PEA is located inside the FW; type 3, the PEA is located in the ethmoid cells facing the FW posteriorly; type 4, the PEA is located inside the second wall anterior to the optic canal; and type 5, the PEA is located anterior to the second wall that is anterior to the optic canal.…”

Section: Methodsmentioning

confidence: 99%

Anatomy of the posterior and middle ethmoidal arteries via computed tomography

et al. 2018

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Objective:The aim of this study is to investigate the anatomy of the posterior and middle ethmoidal arteries from the viewpoint of an endoscopic sinus surgeon.Methods:Based on 100 computed tomography images, the anatomical position of the posterior ethmoidal artery in relation to the posterior ethmoid cells was classified into five types. The presence of the posterior and middle ethmoidal arteries, their distance from the skull base, and their length exposed in the ethmoid cells were measured. The association of patients’ age and sex, presence of the middle ethmoidal artery, and anatomical type of the posterior ethmoidal artery with the posterior ethmoidal artery distance from the ethmoid roof was analyzed.Results:The posterior ethmoidal artery’s position, relative to the ethmoid cell walls, was most often near the first wall, anterior to the optic canal (92.5%). The posterior ethmoidal artery’s distance from the skull base ranged from 0 to 6.4 mm (mean: 1.2 mm). Older age, longer length of the posterior ethmoidal artery exposed in the ethmoid cells, and absence of the middle ethmoidal artery were positively associated with a longer posterior ethmoidal artery distance from the skull base.Conclusion:Attention should be paid to the posterior and middle ethmoidal arteries.

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Identification of Onodi cell and new classification of sphenoid sinus for endoscopic sinus surgery

Cited by 38 publications

References 23 publications

Sphenoethmoid Cell: The Battle for Places Inside of the Nose Between a Posterior Ethmoid Cell and Sphenoid Sinus: 3D-Volumetric Quantification

Sphenoethmoid Cell: The Battle for Places Inside of the Nose Between a Posterior Ethmoid Cell and Sphenoid Sinus: 3D-Volumetric Quantification

Optic Neuropathy, Secondary to Ethmoiditis, and Onodi Cell Inflammation during Childhood: A Case Report and Review of the Literature

Anatomy of the posterior and middle ethmoidal arteries via computed tomography

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