||Anatomic Variants of Sphenoid Sinuses and Adjacent Structures: A Study of 225 Skull CT Scans at CNHU-HKM in Benin, West Africa
Yèkpè P ,
||Open Journal of Radiology
||Objective: This study aimed to describe anatomic variants of sphenoidal sinuses
and adjacent structures. Methods: A retrospective and descriptive study
was carried out at The National and University Teaching Hospital Hubert
Koutoukou Maga (CNHU-HKM), of Cotonou in Benin from November 1st
to December 31st. A review of CT scans skull was done for the subjects aged
at least 16 years old. Anatomic variants of the sphenoid sinuses and adjacent
structures have been investigated. Results: 225 CT scans of skull were analyzed.
The sellar type was the most common type of pneumatization of sphenoid
sinuses (74.7%). Pneumatization of anterior clinoid processes of greater
and lesser wings of the sphenoid and of pterygoid processes was observed in
7.1%; 4.6%; 3.3% and 7.3%; respectively. Protrusion of carotid canals and optic
canals, maxillary and vidian nerves were observed in 48.3%; 13.1%; 18%
and 9.5%; respectively. Conclusion: Risky anatomic variants of the sphenoid
sinuses and adjacent structures are also described by CT-scan among Beninese.
Before any surgery and to avoid bad outcome, a precise approach of
these risky anatomic variants must be carried out by using CT-scan.
||Anatomic Variants, Sphenoid Sinuses, Skull CT-Scan, Benin
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