Schmid et al. [47] (Table 3, previously described) found KRAS mutation status concordance to be 74 % (71/96), including one discordant result of a KRAS mutation that was different in the primary (G12C) versus the metastatic (G12R) tumour, and another with unknown mutation status in the corresponding primary tumour of a KRAS mutation-positive metastasis. The gene discussed is KRAS; the disease is neoplasm.