Anatomic variations of surgical importance in ethmoid labyrinth and sphenoid sinus. A study of radiological anatomy

The present study was performed on axial and coronal CT scans of 100 patients, most of whom were affected by nasal polyposis. Five observers had to analyse the radiograms and answer a questionnaire including the following items: presence of a supraorbital recess; identification of anterior and poste...

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Bibliographic Details
Published in:Surgical and radiologic anatomy (English ed.) 1992-03, Vol.14 (1), p.65-70
Main Authors: Meloni, F, Mini, R, Rovasio, S, Stomeo, F, Teatini, G P
Format: Article
Language:English
Subjects:
Ethmoid Bone - abnormalities
Ethmoid Bone - diagnostic imaging
Humans
Italy - epidemiology
Nasal Polyps - diagnostic imaging
Nasal Polyps - epidemiology
Retrospective Studies
Sphenoid Sinus - abnormalities
Sphenoid Sinus - diagnostic imaging
Tomography, X-Ray Computed
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Summary:The present study was performed on axial and coronal CT scans of 100 patients, most of whom were affected by nasal polyposis. Five observers had to analyse the radiograms and answer a questionnaire including the following items: presence of a supraorbital recess; identification of anterior and posterior ethmoidal canals; dehiscences in the lamina papyracea; pneumatized middle turbinate; presence of a sphenomaxillary plate; presence of Haller's cells; presence of Onodi's cells; relationships of the optic canal; relationships of the internal carotid artery; relationships of the maxillary nerve; relationships of the vidian nerve; level difference between the ethmoid roof and nasal vault; depth of the sphenoethmoidal recess. The data obtained were compared with those drawn from anatomical studies. The fair agreement between them proves the value of CT as an alternative method for studying paranasal sinuses anatomy.
ISSN:0930-1038
1279-8517
DOI:10.1007/bf01628046