The tumor cross sectional area was 2.8 ± 1.0 mm2 of G-small tumors and 3.0 ± 0.9 mm2 of MLL-small tumors (mean ± SEM, p = 0.645), with G-small tumors occupying in average 18 ± 6% and MLL-small tumors 18 ± 7% (mean ± SEM) of the right ventral prostate lobe volume. This evidence concerns the gene KMT2A and neoplasm.