title: Malignant transformation of inverted papilloma of the maxillary sinus.
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D002471:Cell Transformation, Neoplastic; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000473:pathology*; D008875:Middle Aged; D010212:Papilloma / Q000473:pathology*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology*