HMGA2 and leukemia: Another indication pointing in the same direction has been the identification of disrupted forms of HMGA2, due to rearrangements of chromosomal band 12q15 (the band where the gene is located), that are consistently seen in different benign mesenchymal tumours but also in some malignant neoplasms such as ovarian carcinomas and leukemia [20, 33–36].