This activity encompasses all types of hereditary cancer (HC) syndromes, although we work mainly with hereditary colorectal cancer (Familial Adenomatous Polyposis, FAP, and Hereditary Non-Polyposis Colorectal Cancer, HNPCC), hereditary breast and ovarian cancer (HBOC) and neurofibromatoses Type 1 and Type 2 (NF1, NF2) and related disorders such as RASopathies and Phakomatoses. Here, NF1 is linked to hereditary nonpolyposis colon cancer.