cases, sinus Week 456: Case 3 April 26, 2023 pathadmin 1. Presented by William Westra, M.D. and prepared by Carla Ellis, M.D.50 year old man with recurrent inverted papilloma of maxillary sinusimages/1Alex/10252010case3image1.jpgimages/1Alex/10252010case3image2.jpgimages/1Alex/10252010case3image3.jpgRecurrent Schneiderian papilloma, inverted typeCarcinomatous transformation of an inverted Schneiderian papillomaPapillary squamous cell carcinoma Loading...