Abstract
BACKGROUND: The sphenoid sinuses are located at the skull base at the junction of the anterior and middle
cerebral fossae. The sphenoid sinus drains through a single ostium into the sphenoethmoid recess: this ostium
is classically situated 7 cm from the base of the columella at an angle of 30° with the floor of the nose in a
parasagittal plane, and this usually corresponds to a location halfway up the anterior wall of the sinus. Endoscopically, the posteroinferior end of the superior turbinate points superiorly and medially toward the ostium
and thus represents a very important landmark to identify it. The objective of this study was to establish
whether there is uniformity of distance measurements both from nasal aperture and between right and left
sphenoidal sinuses.
METHODS: This study was conducted in conjunction with the department of Anatomy at the National University of Ireland, Galway, Ireland. Total of 10 cadavers were examined with rigid nasal endoscopes, guide wires
and digital vernier caliper. Distances were obtained for anterior and posterior sphenoid walls in each cadaver on each side.
RESULTS: The total mean distance from nasal aperture to anterior sphenoidal wall was 70.17mm (range
61.04-79.32) and the mean distance from nasal aperture to posterior sphenoidal wall was 83.82mm (range
75.10-90.87mm).
CONCLUSIONS: The analysis of the study revealed wide variations of distance, both from the nasal aperture
and between Right & Left sinuses.
Salman Baig, Asma NK, N.Patil. (2017) Anatomical Variation Between Columella And Sphenoidal Sinuses: A Study Conducted On Adult Cadavers, The Pakistan Journal of Medicine and Dentistry, Volume-6, Issue-2.
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