CK20 and CK5/6 Immunohistochemical Staining of Urothelial Neoplasms: A Perspective

Figure 3

(a) High-grade papillary urothelial carcinoma. (b) High-grade papillary urothelial carcinoma with diffuse full-thickness staining for CK20 and presence of basal layer as demonstrated by CK5/6 staining. (c) High-grade urothelial carcinoma revealing the diffuse presence of basal cells and full-thickness staining for CK20.

(a)

(b)

(c)