IMP3 Immunohistochemical Expression in Inverted Papilloma and Inverted Papilloma-Associated Sinonasal Squamous Cell Carcinoma

Figure 2

Sinonasal inverted papilloma: (a) by H&E (H&E ×100); (b) by IMP3 showing low intensity of cytoplasmic staining in outermost epithelial cell layer of the IP masses (IHC ×100); (c) by Ki-67 showing scattered nuclear expression of moderate intensity in outermost layer of IP masses (IHC ×100).

(a)

(b)

(c)