cases, nasopharynx Week 115: Case 1 April 26, 2023 pathadmin 1. Presented by William Westra, M.D. and prepared by Greg Seidel, M.D.13 year-old boy with a unilateral mass involving the posterior nasal cavity/images/1202021a.jpg/images/1202021b.jpg/images/1202021c.jpg/images/1202021d.jpgSinonasal papilloma, inflammatory typeSinonasal papilloma, antrochoanal typeSinonasal papilloma of the type seen in cystic fibrosisSchneiderian papilloma, fungiform type Loading...