Fig. 2From: Molecular classification of high-grade, muscle-invasive urothelial carcinomas and the relationship with CTLA-4 and PD-L1 expressionBasal molecular profile. Expression of CK5/6 (A) and focal expression of CD44 (B); lack of expression of CK20 (C). Technique: immunohistochemistry. Magnification: 200xBack to article page