The profile of tumour infiltrated immune cells in the LS-CRC patient’s tumour matched that of five MLH-1 mutant MSI-H CRC tumours obtained from TCGA (The Cancer Genome Atlas), with the exception of CD8+ T cells, which appeared to be higher in the LS-CRC tumour (Fig. 7B). The gene discussed is MLH1; the disease is colorectal carcinoma.