Two cases showed mid-size arterial structures, demonstrating a majority of positive endothelial cells (Figure 2C), while, in the third case, a large vein manifested scarce positive endothelial cells, with a single adjacent positive tumor cell (Figure 2D)—the case was not considered to be a WT1 positive tumor, seeing as it did not meet the minimum set of quantitative analysis criteria described in Table 2. The gene discussed is WT1; the disease is neoplasm.