APC and breast cancer: Subsequently, several other genes associated with sarcoma, intestinal cancer, kidney cancer and breast cancer (APC, MUTYH, MSH2, MLH1, MSH6, PMS2, STK11, SMAD4, BMPR1A, PTEN, TP53, CDH1, PALB2, RAD51C, RAD51D, SDHB, SDHC, SDHD, and VHL) were analysed, and an APC gene (NM_000038.6) variant (c.3920T > A, p.(Ile1307Lys) was detected.