Fig. 2From: Inverted urothelial papilloma of the upper urinary tract: description of two cases with systematic literature reviewImmunohistochemical results in two cases of IUP pf the upper urinary tract. Both cases were negative for CK20 immunostaining (Case 1: a; Case 2: c) and showed low Ki-67 labelling index (< 1%) (Case 2: b; Case 2: d)Back to article page