cases, oral Week 86: Case 6 April 26, 2023 pathadmin 1. Presented by William Westra, M.D. and prepared by Bahram R. Oliai, M.D.74 year-old man with a large mass involving the maxillary sinus and underlying palatine bone.Inverted Schneiderian papillomaAmeloblastomaSquamous cell carcinoma 1. Presented by William Westra, M.D. and prepared by Bahram R. Oliai, M.D.74 year-old man with a large mass involving the maxillary sinus and underlying palatine bone.