TP53 and neoplasm: Based on chromosome 17 status, near-triploid tumours were constituted of two (2 CEP 17 and 2 LSI p53 signals, 2:2), three (3:3) and four (4:4) chromosome 17 signals clonal populations that ranged from 10–55%, 24–70% and 7–45% of the cells, respectively.