Cylindrical Schneiderian papilloma
Cylindrical cell papilloma shows extensive papillary epithelial proliferation with esosinophilic to granular cytoplasm
(top left). It also consists of multiple intraepithelial mucin cysts (top right, bottom left and right). The cysts often contain
PMNs (bottom right). Cilia can also be visualized at the outer surface ot the epithelial proliferation (bottom right).
1 minute clinical correlation