open access

Vol 62, No 4 (2003)
Short Communications
Published online: 2003-09-05
Submitted: 2012-02-06
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Types of ethmoid sinus morphology on the basis of computed tomography examination

Ingrid Różyło-Kalinowska, Grzegorz Jędrzejewski, Franciszek Burdan
Folia Morphol 2003;62(4):407-409.

open access

Vol 62, No 4 (2003)
Short Communications
Published online: 2003-09-05
Submitted: 2012-02-06

Abstract

The aim of the study was the application of computed tomography (CT) in the evaluation of types of ethmoid morphology. The material consisted of 197 CT examinations performed, using the Somatom AR.T (Siemens) CT scanner, in patients referred for CT for reasons other than sinus pathology. The examinations were performed in 2-mm contiguous axial scans. Ethmoid morphology was evaluated by means of classification into 3 types according to the degree of aeration and the relationship of the anterior ethmoid cells to the lacrimal sac on transversal scans. The most common was the II type (medium relationship to the lacrimal sac) found in 38.32% of the cases. Type III (large ethmoid sinus extending in front of the lacrimal sac) occurred in 32.49% of the patients, while the smallest sinus (Type I) was detected in the remaining 29.19% of the cases. In almost 1/5 of the cases asymmetry of the bilateral ethmoid anatomy was noted. It was concluded that CT examination was useful in the evaluation of ethmoid sinus morphology in respect to the lacrimal sac.

Abstract

The aim of the study was the application of computed tomography (CT) in the evaluation of types of ethmoid morphology. The material consisted of 197 CT examinations performed, using the Somatom AR.T (Siemens) CT scanner, in patients referred for CT for reasons other than sinus pathology. The examinations were performed in 2-mm contiguous axial scans. Ethmoid morphology was evaluated by means of classification into 3 types according to the degree of aeration and the relationship of the anterior ethmoid cells to the lacrimal sac on transversal scans. The most common was the II type (medium relationship to the lacrimal sac) found in 38.32% of the cases. Type III (large ethmoid sinus extending in front of the lacrimal sac) occurred in 32.49% of the patients, while the smallest sinus (Type I) was detected in the remaining 29.19% of the cases. In almost 1/5 of the cases asymmetry of the bilateral ethmoid anatomy was noted. It was concluded that CT examination was useful in the evaluation of ethmoid sinus morphology in respect to the lacrimal sac.
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Keywords

ethmoid sinus; computed tomography

About this article
Title

Types of ethmoid sinus morphology on the basis of computed tomography examination

Journal

Folia Morphologica

Issue

Vol 62, No 4 (2003)

Pages

407-409

Published online

2003-09-05

Bibliographic record

Folia Morphol 2003;62(4):407-409.

Keywords

ethmoid sinus
computed tomography

Authors

Ingrid Różyło-Kalinowska
Grzegorz Jędrzejewski
Franciszek Burdan

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