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128768

ANATOMICAL VARIATIONS OF HUMAN PARANASAL SINUSES: COMPUTED TOMOGRAPHIC ANALYSIS.

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Last updated: 23 Jan 2023

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Abstract

The present investigation presents the anatomical variations of the hu­man paranasal sinuses using com­puted tomography scanning (CT scan). Paranasal sinus CT scans ob­tained from 300 subjects (120 male and 180 female) were analyzed. Their ages ranged from 15 to 55 years with a mean age (28.4±8.79).
The maxillary sinus revealed a number of anatomical variations in 30% of cases. They appeared in the form of septated sinus in 16%, sinus hypoplasia in 10 %, and the presence of a tooth in the sinus in 4% of the cases. Examination of the frontal si­nus revealed extensive pneumatiza-tion of the sinus in 38%, hypoplasia in 26 % and aplasia in 4 % of the cases. CT examination of the sphenoidal sinus revealed sinus hypoplasia in 4%, extensive pneumatization of the sinus in 6 % and unseptated sphe­noidal sinus in 10% of cases. Impres­sion of the optic nerve on the wall of sphenoidal sinus was found in 60% of the cases. The internal carotid artery bulged within the lumen of the sphe­noidal sinus in 50% of the cases. An­atomical variations of the ethmoid si­nus detected by CT included Agger nasi cell (72%), sphenoethmoidal (Onodi) cell (70%), pneumatized mid­dle turbinate (concha bullosa) (56%), enlarged ethmoid bulla (34%), infra-orbital ethmoidal (Mailer's) cell (30%), and paradoxically curved middle turbi­nate (20%).The uncinate process showed hypoplasia in 24%, elonga­tion in 10%

DOI

10.21608/mjmu.2006.128768

Authors

First Name

Adel

Last Name

Elhawary

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Affiliation

Departments of Anatomy Faculty of Medicine, Mansoura University

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Orcid

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First Name

Elmogy

Last Name

Sabry

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Affiliation

Departments of Radiology Faculty of Medicine, Mansoura University

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Volume

35

Article Issue

2

Related Issue

19106

Issue Date

2006-12-01

Receive Date

2020-12-09

Publish Date

2006-12-01

Page Start

439

Page End

465

Print ISSN

1110-211X

Online ISSN

2735-3990

Link

https://mjmu.journals.ekb.eg/article_128768.html

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https://mjmu.journals.ekb.eg/service?article_code=128768

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9

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Research (original) articles

Type Code

1,453

Publication Type

Journal

Publication Title

Mansoura Medical Journal

Publication Link

https://mjmu.journals.ekb.eg/

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Article

Created At

23 Jan 2023