Author(s)

Patricia Yèkpè^1,2, Djivèdé Akanni^3,4*, Canicius Ovidio de Souza^1,2, Sonia Adjadohoun^1,2, Miralda Kiki⁴, Kofi-Mensa Savi de Tovè^3,4, Olivier Biaou^1,2, Vicentia Boco^1,2, Vicentia Boco^1,2

¹Faculty of Health Sciences, University of Abomey Calavi, Cotonou, Benin.
²Department of Radiology, National and University Teaching Hospital Hubert Koutoukou Maga, Cotonou, Benin.
³Faculty of Medicine, University of Parakou, Parakou, Benin.
⁴Department of Radiology, University Teaching Hospital of Borgou Department, Parakou, Benin.

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

Yèkpè, P. , Akanni, D. , de Souza, C. , Adjadohoun, S. , Kiki, M. , de Tovè, K. , Biaou, O. , Boco, V. and Boco, V. (2018) Anatomic Variants of Sphenoid Sinuses and Adjacent Structures: A Study of 225 Skull CT Scans at CNHU-HKM in Benin, West Africa. Open Journal of Radiology, 8, 181-190. doi: 10.4236/ojrad.2018.83021.