A role for CD44, ALCAM, DTX, HSPA9, CCNA, PDX1, MYST1, COL1A1 and ABCG2 expression in influencing tumour outcome, possibly through interaction with the stem cells population, has been separately described in the past, but this is, to our knowledge, the first time that multiple markers have been examined simultaneously, confirming the relative significance of each one of them. The gene discussed is ABCG2; the disease is neoplasm.