Figure 2

Correlations between microvessel area (MVA) in different areas of a given tumor. Two tissue microarrays, each containing duplicate histoscores taken from separate areas within the matched primary and metastatic RCCs, were constructed. Vessel Area, expressed as the percent area covered by CD-34 staining within the tumor, demonstrates good array-to-array correlation, and low intra-tumor variability, R = 0.75.