PROM1 and neoplasm: There was no significant difference in relative mRNA expression of SOX2 (91.7 (24.9-172.9) v 59.2 (21.0-111.3), p = 0.244), Nestin (17.7 (6.3–34.6) v 14.8 (6.7–28.5), p = 0.884) or CD133 (4.2 (0.8–8.4) v 4.5 (1.3–26.1), p = 0.487) in the WDLD tumours compared with tumours meeting lineage criteria.