Nasal Polyp are fleshy swellings that develop in the lining mucosa of the nose and paranasal sinuses, air-filled spaces, linked to the nasal cavity.

鼻息肉是在与鼻腔相连的鼻腔和鼻窦（充满空气的间隙）的内壁黏膜中增生的肉质肿胀。