The Relationship between Sphenoid Sinus, Carotid Canal, and Optical Canal in Paranasal Sinus Computed Tomography in Children

Abstract

Objectives The authors examined the structural differences in the paranasal sinus region at sphenoid sinus in the pediatric population.

Methods Paranasal sinus computed tomography (PNSCT) images of 86 pediatric subjects (30 males, 56 females) were included. In 13 to 15 years of age group (n=34) and ≥16 years of age group (n=52), sphenoid sinus pneumatization (SSP), optic canal and carotid canal classifications and dehiscence evaluation were performed.

Results In both sexes, type 1 and type 2 SS pneumatization were observed more frequently on both the right and left sides. On the right side, type 2> type 1; on the left side type 1> type 2 optic canals were detected in both gender. Type 3 optic canals were detected in 8.8 to 14.7% of the 13 to 15 years of age group; and 11.5 to 17.3% of ≥16 years of age group. Type 4 optic canals were detected in 2.9% of the 13 to 15 years of age group and 1.9% of the ≥16 years of age group bilaterally. Optic canal dehiscence was detected in 26.5% of the 13 to 15 years of age group and 17.3% of the ≥16 years of age group. Type 1 and type 2 carotid canals are most common in children, the percentages for type 3 carotid canals were 1.8 to 3.6% in children.

Conclusion In pneumatized SS, optic canal classifications got increased values which showed protrusion into the sphenoid sinus wall. Therefore, in children, the surgeons must be very careful for optic canal being nearer to the sphenoid sinus walls.

Keywords

sphenoid sinus - pneumatization - optic canal - carotid canal - PNSCT

Authors' Contributions

S.T. and M.İ. are the guarantors of integrity of the entire study and they did clinical studies.S.T., N.B.M., M.İ., A.G., and Z.Ş. studied concepts and design and did literature search. N.B.M. did the statistical analysis and manuscript editing. N.B.M. and S.T. prepared the manuscript.

Ethics Committee Approval

This study is retrospective. Ethics committee approval was obtained from Kırıkkale University Non-invasive Research Ethics Committee (Date: August 21, 2019, Number: 2019.08.02).

There is no need to take informed consent, because the data were evaluated retrospectively.

There are no funds for this article.

Publication History

Received: 11 May 2021

Accepted: 17 June 2022

Article published online:
02 September 2022

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