The Onodi cell: An obstacle to sellar lesions with a transsphenoidal approach

Ji Hyeon Shin, Sung Won Kim, Yong Kil Hong, Sin Soo Jeun, Seok-Gu Kang, Soo Whan Kim, Jin Hee Cho, Yong Jin Park

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Objective. The Onodi cell is the posterior-most ethmoid air cell and an important anatomical variant because of the intimate spatial relationship with the optic nerve, internal carotid artery, and sellar floor during sphenoid sinus surgery. The authors evaluated the incidence of Onodi cells, their clinical importance, and the association between preoperative radiological findings and surgical findings. Study Design. Case series with chart review. Setting. Tertiary care medical center. Methods. The authors retrospectively reviewed the medical records of 162 cases, including preoperative paranasal sinus computed tomography (PNS CT) findings and the findings with the endoscopic endonasal transsphenoidal approach (EETSA). They evaluated the prevalence of Onodi cells and the clinical manifestations in the patients with these cells. They also examined the clinical significance of these cells during EETSA. Results. Onodi cells were identified in the preoperative PNS CTof 53 patients, whereas Onodi cells were observed in 54 (33.3%) of the 162 patients at EETSA. The Onodi cells were bilateral in 23 patients and unilateral in 31. In all cases, the Onodi cells limited the exposure of the sellar floor. Only after removing these cells was the entire sellar floor exposed so that the tumors could be removed completely. Conclusion. Onodi cells were observed more frequently than in previous studies, and 98.1% of them were identified on preoperative PNS CT. When reviewing PNS CT images preoperatively, one needs to identify the presence of Onodi cells. The Onodi cells must be removed to completely resect tumors located in the sellar region during EETSA.

Original languageEnglish
Pages (from-to)1040-1042
Number of pages3
JournalOtolaryngology - Head and Neck Surgery
Volume145
Issue number6
DOIs
Publication statusPublished - 2011 Dec 1

Fingerprint

Paranasal Sinuses
Tomography
Sphenoid Sinus
Internal Carotid Artery
Optic Nerve
Tertiary Care Centers
Medical Records
Neoplasms
Air
Incidence

All Science Journal Classification (ASJC) codes

  • Surgery
  • Otorhinolaryngology

Cite this

Shin, Ji Hyeon ; Kim, Sung Won ; Hong, Yong Kil ; Jeun, Sin Soo ; Kang, Seok-Gu ; Kim, Soo Whan ; Cho, Jin Hee ; Park, Yong Jin. / The Onodi cell : An obstacle to sellar lesions with a transsphenoidal approach. In: Otolaryngology - Head and Neck Surgery. 2011 ; Vol. 145, No. 6. pp. 1040-1042.
@article{e28b1b52dfde4656a483906a347eea35,
title = "The Onodi cell: An obstacle to sellar lesions with a transsphenoidal approach",
abstract = "Objective. The Onodi cell is the posterior-most ethmoid air cell and an important anatomical variant because of the intimate spatial relationship with the optic nerve, internal carotid artery, and sellar floor during sphenoid sinus surgery. The authors evaluated the incidence of Onodi cells, their clinical importance, and the association between preoperative radiological findings and surgical findings. Study Design. Case series with chart review. Setting. Tertiary care medical center. Methods. The authors retrospectively reviewed the medical records of 162 cases, including preoperative paranasal sinus computed tomography (PNS CT) findings and the findings with the endoscopic endonasal transsphenoidal approach (EETSA). They evaluated the prevalence of Onodi cells and the clinical manifestations in the patients with these cells. They also examined the clinical significance of these cells during EETSA. Results. Onodi cells were identified in the preoperative PNS CTof 53 patients, whereas Onodi cells were observed in 54 (33.3{\%}) of the 162 patients at EETSA. The Onodi cells were bilateral in 23 patients and unilateral in 31. In all cases, the Onodi cells limited the exposure of the sellar floor. Only after removing these cells was the entire sellar floor exposed so that the tumors could be removed completely. Conclusion. Onodi cells were observed more frequently than in previous studies, and 98.1{\%} of them were identified on preoperative PNS CT. When reviewing PNS CT images preoperatively, one needs to identify the presence of Onodi cells. The Onodi cells must be removed to completely resect tumors located in the sellar region during EETSA.",
author = "Shin, {Ji Hyeon} and Kim, {Sung Won} and Hong, {Yong Kil} and Jeun, {Sin Soo} and Seok-Gu Kang and Kim, {Soo Whan} and Cho, {Jin Hee} and Park, {Yong Jin}",
year = "2011",
month = "12",
day = "1",
doi = "10.1177/0194599811418040",
language = "English",
volume = "145",
pages = "1040--1042",
journal = "Otolaryngology - Head and Neck Surgery",
issn = "0194-5998",
publisher = "Mosby Inc.",
number = "6",

}

Shin, JH, Kim, SW, Hong, YK, Jeun, SS, Kang, S-G, Kim, SW, Cho, JH & Park, YJ 2011, 'The Onodi cell: An obstacle to sellar lesions with a transsphenoidal approach', Otolaryngology - Head and Neck Surgery, vol. 145, no. 6, pp. 1040-1042. https://doi.org/10.1177/0194599811418040

The Onodi cell : An obstacle to sellar lesions with a transsphenoidal approach. / Shin, Ji Hyeon; Kim, Sung Won; Hong, Yong Kil; Jeun, Sin Soo; Kang, Seok-Gu; Kim, Soo Whan; Cho, Jin Hee; Park, Yong Jin.

In: Otolaryngology - Head and Neck Surgery, Vol. 145, No. 6, 01.12.2011, p. 1040-1042.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The Onodi cell

T2 - An obstacle to sellar lesions with a transsphenoidal approach

AU - Shin, Ji Hyeon

AU - Kim, Sung Won

AU - Hong, Yong Kil

AU - Jeun, Sin Soo

AU - Kang, Seok-Gu

AU - Kim, Soo Whan

AU - Cho, Jin Hee

AU - Park, Yong Jin

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Objective. The Onodi cell is the posterior-most ethmoid air cell and an important anatomical variant because of the intimate spatial relationship with the optic nerve, internal carotid artery, and sellar floor during sphenoid sinus surgery. The authors evaluated the incidence of Onodi cells, their clinical importance, and the association between preoperative radiological findings and surgical findings. Study Design. Case series with chart review. Setting. Tertiary care medical center. Methods. The authors retrospectively reviewed the medical records of 162 cases, including preoperative paranasal sinus computed tomography (PNS CT) findings and the findings with the endoscopic endonasal transsphenoidal approach (EETSA). They evaluated the prevalence of Onodi cells and the clinical manifestations in the patients with these cells. They also examined the clinical significance of these cells during EETSA. Results. Onodi cells were identified in the preoperative PNS CTof 53 patients, whereas Onodi cells were observed in 54 (33.3%) of the 162 patients at EETSA. The Onodi cells were bilateral in 23 patients and unilateral in 31. In all cases, the Onodi cells limited the exposure of the sellar floor. Only after removing these cells was the entire sellar floor exposed so that the tumors could be removed completely. Conclusion. Onodi cells were observed more frequently than in previous studies, and 98.1% of them were identified on preoperative PNS CT. When reviewing PNS CT images preoperatively, one needs to identify the presence of Onodi cells. The Onodi cells must be removed to completely resect tumors located in the sellar region during EETSA.

AB - Objective. The Onodi cell is the posterior-most ethmoid air cell and an important anatomical variant because of the intimate spatial relationship with the optic nerve, internal carotid artery, and sellar floor during sphenoid sinus surgery. The authors evaluated the incidence of Onodi cells, their clinical importance, and the association between preoperative radiological findings and surgical findings. Study Design. Case series with chart review. Setting. Tertiary care medical center. Methods. The authors retrospectively reviewed the medical records of 162 cases, including preoperative paranasal sinus computed tomography (PNS CT) findings and the findings with the endoscopic endonasal transsphenoidal approach (EETSA). They evaluated the prevalence of Onodi cells and the clinical manifestations in the patients with these cells. They also examined the clinical significance of these cells during EETSA. Results. Onodi cells were identified in the preoperative PNS CTof 53 patients, whereas Onodi cells were observed in 54 (33.3%) of the 162 patients at EETSA. The Onodi cells were bilateral in 23 patients and unilateral in 31. In all cases, the Onodi cells limited the exposure of the sellar floor. Only after removing these cells was the entire sellar floor exposed so that the tumors could be removed completely. Conclusion. Onodi cells were observed more frequently than in previous studies, and 98.1% of them were identified on preoperative PNS CT. When reviewing PNS CT images preoperatively, one needs to identify the presence of Onodi cells. The Onodi cells must be removed to completely resect tumors located in the sellar region during EETSA.

UR - http://www.scopus.com/inward/record.url?scp=84863338344&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863338344&partnerID=8YFLogxK

U2 - 10.1177/0194599811418040

DO - 10.1177/0194599811418040

M3 - Article

C2 - 21817156

AN - SCOPUS:84863338344

VL - 145

SP - 1040

EP - 1042

JO - Otolaryngology - Head and Neck Surgery

JF - Otolaryngology - Head and Neck Surgery

SN - 0194-5998

IS - 6

ER -