Figure 1

Pedigrees of the explained polyposis cases. (a) MUTYH biallelic mutations carrier families. (b) APC mutations carrier families. †polyposis diagnosis after family mutation identification. Black square = cancer; black circle = >10 adenomas; +=variant carrier; −non carrier; +/+biallelic carrier; GC = gastric cancer; CRC = colorectal cancer; BC = breast cancer; y = years; A = adenomas.