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Endoscopic View of Exposed Sphenoid Ostium

Surgical Correlation

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Endoscopic endonasal approach through the right nostril. A partial anterior ethmoidectomy, including removal of the middle and superior turbinates has been performed. The sphenoid ostium is located in the spheno-ethmoidal recess. approximately 1.5 cm above the choana. (Image courtesy of JC Fernandez-Miranda)

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