If you are experiencing a medical emergency please dial 911 immediately
The nasal sinus cavities are moist, hollow spaces in the bones around your eyes, cheeks, and nose. They are connected to the nasal passages through narrow openings.
Last Revised: November 7, 2011
Author: Healthwise Staff
Medical Review: Adam Husney, MD - Family Medicine & Donald R. Mintz, MD - Otolaryngology
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