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