Although our assays were not performed in DNA samples extracted from sections enriched for cancer cells, in five cases harbouring RAD51D c.137C>G or c.620C>T (PT0058, PT0071, PT0075, PT0076 and PT0077), there was clear evidence of loss wild-type allele in the analysis of tumour DNA extracted from FFPE. This evidence concerns the gene RAD51D and cancer.