“…The resulting DNA histograms were classified according to Auer et al ., Krishnamurthy et al ., and Sun et al . [ 15 16 17 ] For each analysis, the following variables were automatically calculated by the image analysis software: DNA index, ploidy balance, proliferation index, degree of hyperploidy (percentage of cells with a DNA content of >5c), and degree of aneuploidy. According to this classification, there are usually four types of histograms: diploid, low proliferation, and no cells >5c (low grade); broad diploid (diploid or tetraploid), low proliferation, and no more than 10 cells >5c (intermediate grade); aneuploid (diploid or aneuploid; can be multiple aneuploidy stem lines), high proliferation, and numerous cells >5c (high grade); and polyploid, (diploid, tetraploid, and octaploid stem lines, and low proliferation).…”