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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Seno etmoideo

Ethmoid sinus (ETH-moyd SY-nus)
A type of paranasal sinus (a hollow space in the bones around the nose). Ethmoid sinuses are found in the spongy ethmoid bone in the upper part of the nose between the eyes. They are lined with cells that make mucus to keep the nose from drying out.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.