Chromosomal imbalances in human bladder urothelial carcinoma: similarities and differences between biopsy samples and cancer stem-like cells.

the percentage of cells and the number of signals (see the graphic in Figure 2 A), we evidenced a trend to the complete loss of Y chromosome in two LG non-invasive cases (9 and 10); three HG samples (17, 24 and 25) manifested the propensity to maintain the Y chromosome, but with a slight trend to acquire one additional copy (more evident for the non-invasive case 17); two overlapped cases (11 and 23), with different grade and stage, show a tendency to two copies of Y chromosome; the last two cases (19 and 21, both HG invasive cases) show a trend to acquire two or even more copies of the

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