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. Author manuscript; available in PMC: 2009 May 11.
Published in final edited form as: J Urol. 2007 Nov 19;179(1):353–358. doi: 10.1016/j.juro.2007.08.087

Figure 2.

Figure 2

Expression of ErbB-4 tested in a tissue microarray containing samples of 248 bladder tumors. (A and B) Baseline expression levels in normal urothelium (A, x8; B, x200). (C) Low power view of representative tissue cores corresponding to high-grade (Grade 3) invasive (T1b-T4) TCC with retention (left column) and loss (right column) of ErbB-4 expression (x18). (D) Higher magnification of a tissue core shown in C with retention of ErbB-4 expression (x400). (E) Higher magnification of a tissue core shown in C with loss of ErbB-4 expression (x400). Note that tumors with retention of expression show levels of ErbB-4 similar to its baseline expression in normal urothelium.