While there is no apparent correlation between the type of cancer and radiosensitivity, Table 1 shows that some radiosensitive syndromes may be associated with a large spectrum of malignancies This is notably the case of heterozygous BRCA1/BRCA2 mutations that may lead to fallopian tube cancer, primary peritoneal cancer, female and male breast cancer, pancreatic cancer, and prostate cancer [92]. This evidence concerns the gene BRCA1 and breast cancer.