NCIt synonyms : Benign Tumor of Ethmoidal Sinus; Benign Ethmoidal Sinus Neoplasm; Benign Tumor of Ethmoid Sinus; Benign Neoplasm of the Ethmoid Sinus; Benign Ethmoidal Sinus Tumor; Benign Neoplasm of Ethmoid Sinus; Benign Tumor of the Ethmoidal Sinus; Benign Neoplasm of the Ethmoidal Sinus; Benign Tumor of the Ethmoid Sinus; Benign Ethmoid Sinus Tumor; Benign Neoplasm of Ethmoidal Sinus;
NCIt definition : A neoplasm that arises from the ethmoid sinus and is characterized by the absence
of atypical or malignant cytological and architectural features, and absence of invasive
features or metastatic potential.;