Cancer of the paranasal sinus and nasal cavity is a disease in which cancer ( malignant ) cells are found in the tissues of the paranasal sinuses or nasal cavity. The paranasal sinuses are small hollow spaces around the nose. The sinuses are lined with cells that make mucus, which keeps the nose from drying out; the sinuses are also a space through which the voice can echo to make sounds when a person talks or sings. The nasal cavity is the passageway just behind the nose through which air passes on the way to the throat during breathing. The area inside the nose is called the nasal vestibule. read more detal...

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