NCIt synonyms : Ethmoidal Polyp; Ethmoidal Sinus Polyp; Polyp of Ethmoid Sinus; Polyp of Ethmoidal Sinus; Polyp of the Ethmoid Sinus; Polyp of the Ethmoidal Sinus;
NCIt definition : A polyp that arises from the ethmoid sinus mucosa. It is characterized by the presence
of edematous tissue infiltrated by inflammatory cells, including eosinophils. Causes
include allergic rhinitis, chronic sinusitis, and cystic fibrosis.;