NCIt synonyms : Accessory Sinus Inverted Papilloma; Inverted Papilloma of the Paranasal Sinus; Paranasal Sinus Inverting Papilloma; Inverted Papilloma of Accessory Sinus; Inverting Papilloma of the Paranasal Sinus; Inverting Papilloma of Accessory Sinus; Inverting Papilloma of Paranasal Sinus; Inverting Papilloma of the Accessory Sinus; Inverted Papilloma of Paranasal Sinus; Inverted Papilloma of the Accessory Sinus; Accessory Sinus Inverting Papilloma; Paranasal Sinus Inverted Schneiderian Papilloma;
NCIt definition : A benign neoplasm that arises from the ciliated respiratory mucosa that lines the
paranasal sinuses. It results from the invagination and proliferation of epithelial
cells in the underlying stroma.;